Why does my GMC Sierra suddenly stop running?

Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?

When does a car have a rough idle?

November 27, 2017. It’s easy to tell when your car has a rough idle: When you start the engine, it won’t run at a steady rate. It may almost stall, or it may run at varying RPMs without your putting your foot on the gas, or it may do both.

Why does my Truck start and run then dies?

59 people found this helpful. Something grounded out and prob shorted a inline fuse so when you turn the key to run you hear your fuel pump Prime the line but when you crank the motor starts then dies. It has to do with your gin. Or ecu. Pcm not telling the pump to fun.

What happens when the engine is running at low rpm?

When the engine is running at low RPM, lower temperatures in the combustion chambers prevent all the fuel from burning, so the flow of unburned hydrocarbon gases coming out of the tailpipe increases significantly. The Check Engine light (or Malfunction Indicator Light, MIL, depending on your model) illuminates on your dashboard.

What does low rpm mean on a GMC Truck?

Lower counts indicate that less air is commanded by the control module. This DTC is designed to detect low engine RPM that is not responding to increased IAC counts. AllOffTopic.com FTW!

What should the idle speed be on a GMC V8?

A V8 should idle at 500rpm. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn’t charge it, when I started it up it ran like you describe for a few days and then it was fine. I think it was doing a crank relearn (I no longer remember why I came up with that theory, though).

Why is my new Chevy truck not running?

The new alternator tested at 66 amps, but when we ran the motor up to 2000 rpm, it went to 130 amps, so it’s probably not a alternator\\battery issue. Crap. On top of that, all the auto repair shops around town are full!

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

How to check fuel pressure in a GMC Sierra 1500?

You will have to check the fuel pressure at the rail, the test port is ontop driverside about 3/4 the way back. Black cap on aluminum fuel line. The best thing would be to buy or rent a fuel pressure test gauge as it would thread onto this port. If not I’ve used good safety glasses a rag and a screwdriver to check for pressure.

How does a GMC Sierra 1500 fuel pump work?

The older model has steel lines coming off of the top of the pump to the frame rail and then connects to the frame steel lines with short hoses, you’ll need line wrenches and the ability to curse. The newer style has plastic tubes from the plastic pump casing and uses those quick connect fuel fittings and you’ll need the disconnect tool.

When is the fuel pump relay turned on?

The fuel pump relay is activated whenever the ignition is turned on. A fuel pump relay functions primarily to maintain a consistent voltage supply to the fuel pump. The ignition or powertrain control module (PCM) usually controls the fuel pump relay.

Is the fuel pump relay controlled by the PCM?

Consequently, the fuel pump relay is usually controlled by, the ignition or powertrain control module (PCM). As a result, when switched on, the fuel pump relay; will provide current to the fuel pump, so that it may function. Therefore, any faults with it, can cause fuel pump issues.

Why does my GMC Sierra 1500 not start?

Happened before, I gave it air, it started, thought bad filters, then noticed no umph in acceleration, leads me fuel line or bad plugs, not burning fuel. Checked carb, It’s not wet this time, leads me to fuel.

Is there a relay for the fuel pump?

I’m guessing there is a relay because every fuse that has to do with the fuel pump is missing. Not even a dealership could help me with an answer. Im just being curious and figured The wonderful GMFS could help me out. You tell me? I’m guessing there is a relay because every fuse that has to do with the fuel pump is missing.

Is there a fuse and relay on a GMC Truck?

My friend has a 07.5 chevy with a fuse and relay but in my 09 it doesn’t. My truck kept dying on me and throwing codes. Ended up being the module above the spare tire not being sealed correctly from gm. Definitely was confused tho when I didn’t see a relay or fuse…

Where is the relay on a GMC 6.2?

Those “gem” threads answered it perfectly. Relay is above the spare tire. My 6.2 is strong and sexy, but it still needs help sucking it’s own gass. Lol It’s crazy how GM can make (what seems to me) pretty major mods by adding relays here and deleting fuses there, but forgetting to update the manual and fuse box diagram.

Why does my fuel pump cut off while driving?

Ended up being a faulty crank position sensor. Its used to fire right back up. But now when it shuts off it does not crank back at all. Also whenever you turn the key to on the fuel pump doesn’t cut on. But everything else will work. Check to see if you have spark and fuel pressure.

Why did my truck engine shut off going down the road?

That was because the top started to rust out, not from failure. When it went in my 98, I was out hunting and it died driving down the road. Replacing it on the truck wasn’t bad, I didn’t even attempt it on the Yukon. Try crawling under the truck and whack the fuel tank with a rubber mallet while someone tries to start it. Click to expand…

Why did my GMC truck engine die while driving?

The positive battery cable was coroded and chewed up. Replaced it and all has been well.

Can a low oil level cause a car to shut off?

Can low oil cause a car to shut off? Low engine oil level does usually not cause your car to shut off. However, if it is too low so your oil pressure is getting low – the car can shut off the engine for safety reasons. This is often in newer cars, though.

Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

What to do if your GM pick up has no start?

One of the most overlooked areas, when testing a hard to diagnose no-start, is the mechanical condition of your 4.3L, 5.0L, 5.7L GM pick up, van or SUV. Checking the engine mechanical condition means an engine compression test.

What kind of Chevy truck won’t start?

In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start…. In this video we encounter a condition where a 2002 Chevy Silverado ( Similar to GMC Sierra ) pickup has a symptom of the engine cranks over but won’t start….

Can a 1997 Chevy c1500 5.7L start?

1997 Chevy C1500, 2WD, 5.7L won’t start – cranks fine. No codes – good fuel pressure ( 60+ psi – new pump), good spark, 1997 Chevy C1500, 2WD, 5.7L wont start – cranks fine. No… It will not start. I changed the fuel filter and fuel pump It will not start.

Why does my 1997 Chevy Suburban not start?

1997 1500 pickup at low throttle engine is missing to the point were I had it full throttle and no power and engine died. Still won’t start … read more Vocational, Technical or Tra… i have a 1998 chevy suburban. It was running fine when parked, but 3 days later will not start. It cranks fine, but sounds as though it wants … read more

What kind of truck is a 2001 GMC Sierra?

I have a 2001 GMC Sierra 1500 SLT 5.3l that I bought used with only 80k miles on it. This truck starts then immediately stalls. Here is a list of things that I have replaced to no avail.

How often does a silveradosierra V8 truck stall?

The truck will start fine everytime, but once in a while it will stall almost immediately right after firing up. Starts right back up, and idles fine. Once in a great while it will stall twice then start and run correctly the 3 rd time. Usually only stalls once though.

Why did my Silverado engine die after 9 months?

Turns out that the wiring harness to the ECM had fallen down onto the motor, melted the loom, and shorted the ECM out occassionally. It only took 9 months to figure this out, but it did the trick. It was extremely frustrating as it would run like a champ one day, and die the next.

Can a GM car still start with a misfire?

If you have one or just two readings that are under 90 PSI your GM vehicle will still start and run, albeit with a misfire condition. I’ve written a ‘How To Do a Compression Test’ article that you may find useful.

Why is my Chevy 4.3 engine still running?

Checking your vehicle’s fluid levels is always a good idea to maintain the overall longevity of the engine. Once you have ruled out all the basics, you can go back to what the Chevy 4.3 engine is known for: bad idle air control valves and throttle control switches.

What to do if your GMC Sierra stall out?

69 people found this helpful. I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.

What kind of engine did a 1990 Chevy truck have?

1990 Chevrolet C1500 — 350 V8 TBI — Regular Cab, Short Bed, 2 wheel drive, 89000 miles. New parts: EGR valve, coolant temperature sensor, fuel filter, idle air control valve, pcv valve, air filter, 1 oxygen sensor (in the exhaust manifold), spark plugs, distributor cap and rotor.

What happens when a GM Truck starts then dies?

It starts then dies immediately. Parts replaced so far: fuel pump, fuel filter, spider injectors, fuel regulator, oil pressure switch, ignition switch, ignition module, passlock, fuel pump relay, spark plugs, wires, distributor cap, rotor and ignition coil. Crank sensor is getting power and 50 psi with key in the on position (not running).

The positive battery cable was coroded and chewed up. Replaced it and all has been well.

Where does the battery start on a GMC Truck?

Start at your battery terminals. If nothing there Trace the ground wire from the battery to its other connection. Battery terminals and ground at alternator. Battery terminals and ground at alternator.

Why did my Yukon engine shut off going down the road?

The wife’s Yukon had one last year. That was because the top started to rust out, not from failure. When it went in my 98, I was out hunting and it died driving down the road. Replacing it on the truck wasn’t bad, I didn’t even attempt it on the Yukon.

What’s the problem with my Silverado 4.3 V6?

2007 Silverado 4.3 V6 -39,000 miles…no engine or tranny mods. No exhaust. I do have a K&N air filter that I just cleaned. I don’t think I have that MAF sensor on my intake like the more expensive trucks do. My problem seems to be a lack of power, like it just doesn’t want to go (V6 jokes aside).

When did the GMC Sierra truck come out?

The GMC Sierra is the fifth-most popular truck in the United States, with more than 230,000 trucks sold in 2019. General Motors introduced the GMC Sierra and its twin, the Chevrolet Silverado, in 1998.

Is the 1998 Chevy Silverado Z71 in fair condition?

Truck started as project but never completed. paint in fair condition all parts are with truck including NEW GM 383 crate motor.

What kind of brake problem does Chevy Silverado have?

I have a 2003 Silverado 1500 4×4, I have been experiencing a front brake rattle when drive rough spots in the road with my foot off the brake, when I apply slight pedal pressure the rattle is gone. I have taken to the dealer multiple time with no results, they say from temp changes to lubrications of the slides.

Why is there a brake warning light on my Chevy Silverado?

The brake warning light indicates that your Silverado has detected that one of its major brake components has failed, typically detected through a loss of pressure. You’ll feel a loss of pressure that manifests itself in the form of a “mushy” brake pedal.

What kind of rust is on 1998 Chevy Silverado Z71?

The hood has the notorious GM clear-cote peel starting and there is some rust starting on the driver fender lip and inner fender apron along with the bottom of the driver’s door.

Why does my GM Truck shut down while driving?

At a dead stop. It would crank over, but not start. Ran the battery dead trying to crank it. My dad came to help, charged the battery, and it started right up. It sounds wierd but this is what its doing.

What to do if your Yukon Denali stops running?

I have a 1999 Yukon Denali, stopped running going down the road, acted like it ran out of gas. Added gas, didn’t help. Changed the Crank Position Sensor, didn’t help. Changed the Spark Plugs, didn’t help. No spark at the plugs, no spark out of the coil, changed the coil, didn’t help.

What causes a truck to shut off and then start up again?

Answer: This could be a problem of a failing fuel pump. This is pretty common on this truck. Normally this would cause the truck to sort of stumble before it stalls. If it just instantly shuts off like you are turning the key off, then it may be a problem in the ignition switch in the steering column, or an ignition control module.

Why does my C / K C10 stop running?

I have a 1984 c10 with a 85-86 Trans am 305 motor that was running ok this morning, well tell me why when I go try to turn it back on few hours later starter starts making grinding noise and is unable to turn the engine just my luck so I go to the auto parts store pick up a new starter slap it in and go to turn the ignition and NOTHING happens …

What to do when your C / K truck stops running?

35 people found this helpful. This is actually a common problem in 70s and 80s C10s and no one ever get’s the right answer. If no one has re-wired this truck in the past then turn your key to the run position and check to see if your turn signals and back up lights are working.

What should I do if my computer won’t restart?

Press the power button for a little more than 10 seconds. Once the computer shuts down, restart again and follow the steps. As you have mentioned you do not have the Windows installation disc. The pre-installed laptop comes with preloaded recovery partition from the OEM (Original Equipment Manufacturer).

What does it mean when your golf cart wont start?

If this all looks good, then ground the spark plug threads to the bare metal of the engine and turn the engine over a couple of times. You should see a spark to the electrode. If the spark plug is plugged in properly to the spark plug cable and you’ve made a proper ground to the outside of it, no spark means a possible bad coil.

What causes a car to turn over but not start?

Sometimes a plugged fuel filter or a problem with the fuel injectors can prevent the engine from getting any gasoline. To check this remove the air cleaner and smell inside the throttle body or air cleaner housing.

Why does my 1995 Honda del Sol not start?

A couple months ago, I was driving my 1995 Del Sol and the engine cut out on me. Just stopped. I tried starting it immediately, and it wouldn’t start. Waited an hour or so, and it started right up. Drove it a little more (15-20 minutes), and it died again. Waited a while, started again.

What happens when a fuel pump goes bad?

For instance, a failing fuel pump will not be able to provide the engine with fuel from the tank. This can lead to a reduction in fuel pressure, resulting in an inconsistent flow of fuel to the engine. At high speeds, this is not a problem. The problem occurs when the engine is running at low speeds. A pause in the flow of fuel can kill the engine.

What causes an engine to stop while driving?

1) Engine Overheating The most common reason for an engine to stop is that it is overheated. As the internal combustion chamber burns air and fuel to create heat energy, it then becomes mechanical energy which causes the vehicle’s parts and components to operate.

What causes a car to stop when idling?

Unfortunately, if the actuator gets damaged, the engine will no longer receive signals that tell it at what speed it should operate when idling. Hence, it stops. The same thing can happen if the system gets clogged. Excessive carbon buildup can also prevent the more accurate measurement of engine speed.

What makes a 2000 Chevy 4.3 truck not start?

7,686 satisfied customers 2000 Chevy 4.3 truck start won’t start runs little rough 2000 Chevy 4.3 truck start won’t start runs little rough fuel pump new think it’s fuel pressure regulater … read more Roy Belding 7,686 satisfied customers

What should I do if my Chevy Silverado wont start?

Chevy Mechanic: Shane, ASE Certified Technician replied 11 years ago you may try to relearn the pass-key system by the following procedure: 30 Minute Re-Learn Procedure Turn ON the ignition, with the engine OFF. Attempt to start the engine, then release the key to ON (vehicle will not start).

Why does my Chevy Silverado 1500 shut off?

Can anyone shed some light on this problem. After driving my 04′ Silverado 1500 all day without any problems, after the truck sat in the driveway for a couple of hours, the truck started right up, but then after about 10-20 seconds it shut off. It now continue to do this. It starts normally, but then shuts off.

What to do when your GMC Truck won’t start?

Try turning your key to the run position a few times (with out starting). Then try to start it. If it starts, sounds like what mine did. I replaced the fuel pump assembly and that fixed the problems. Very common problem.

How often does my GMC Truck turn over?

So far this has been the case pretty much every time i am starting the truck cold. I’ll try to start it and it will turn over for about 3-4 seconds (have tried a bit longer, still no go) then i’ll stop and try to start it again, and the second time it fires right up.

Why does my GMC Silverado shut off before it starts?

Usually if it is bad the truck stays on but won’t start after it gets warmed up so that is probably out of the question. GM’s Passlock/VATS anti-theft system does not let it run for 5-10 seconds; it starts and immediately stalls. It works the same on new and old GMs alike. Sounds like a failing fuel pump to me, even without the stumbling.

What should I do if my fuel pump is failing?

This confirms that the fuel pump is starting to fail. The next step is to confirm the exact fuel pressure with a fuel pressure gauge to be absolutely sure. One of the things that can have you replacing a good fuel pump is an anti-theft system (PassLock) failure.

How to troubleshoot fuel pump in GM 4.3L?

Once the intake air duct is back on the throttle body, have your assistant, inside the vehicle, crank the engine. 1.) The engine will start momentarily and after a few seconds will die. 2.) The engine will only crank but not start at all. 3.) The engine will start and stay running. OK, let’s find out what your results mean:

What should I do if my fuel pump is not working?

Fuel pump breakers usually have a button on top that pops up when it trips. Simply push this button back in until it clicks. Check the owner’s manual for the exact location. Fuel Pump Testing – If the fuse is good and the circuit breaker is not tripped; then the engine is not getting fuel pressure.

How does an electric fuel pump keep cool?

Electric fuel pumps run continuously with your engine, delivering high-pressure fuel to the fuel rail and injectors. Fuel pumps keep cool by staying submerged in fuel. If you make a habit of running your tank all the way to empty before filling up; your fuel pump will most likely die before its designed lifespan.

Why is my car hard to start in the morning?

Especially, if you park outdoors in a cold night, you may notice the car hard to start in the morning. 1. Low Level Of Fuel You need to keep the fuel tank full or at least half full during the colder months. It’s easier for the low temperature to condense a small amount of fuel than a full tank.

What should you do if your car stops running?

If your fuel gauge shows you have sufficient fuel and your car still stops running, you should go get it checked by a mechanic. An alternator is responsible for managing the supply of electricity in your vehicle. If your car suddenly stops running, it is possible that the alternator has gone bad.

Why does my car run after I start it up?

One potential problem that could arise is the inability to control the fuel injection system correctly. This might cause problems keeping the car running after you start it up.

What causes a car to start and then die?

But if there is a fuel leak somewhere, then the proper amount of fuel won’t be able to make it to the combustion chamber. This might cause the engine to still start, but it won’t be able to keep it running. That is why it will die almost immediately after it starts.

What happens if you leave your truck running for too long?

These laws will fine drivers who leave their trucks running for more than a certain period of time. This period of time can be anywhere from a few minutes to a couple hours. The amount of the fines vary widely.

Why do truck drivers keep their trucks running?

Therefore, many truckers will keep the trucks running to keep them warm and to keep oil and coolant circulating the motor. Extremely cold temperatures can create havoc on a truck running diesel.

Why do Truckers leave their trucks idling at night?

The primary reason that truckers leaving their trucks idling during the night is to regulate the temperature inside their truck while they are sleeping. Many times, the insulation of the cab is good enough that drivers can sleep comfortably in the cab of their truck.

What happens if trucking stops in the United States?

Most people don’t understand how important the trucking business is for our survival. 70% of all freight moved in the U.S. from the food industry to healthcare is done by trucks. If trucks stopped, within a short period of time, Americans would be in a life threatening situation.

How many miles on my truck before the fuel pump went out?

Try crawling under the truck and whack the fuel tank with a rubber mallet while someone tries to start it. How many miles on The truck.. I have 4 chevies and each one The fuel pump went out between 90,000 -100,000.. I’ve had upwards of 120,000 before needing to replace mine in the 98 I had.

Who was the driver that ran over the girl?

In April a school bus driver in Shuangcheng was accused of driving over a 5-year-old girl again and again. In May a security camera filmed a truck driver running over a young boy four times; the driver claimed that he had never noticed the child.

Where are the fuses on a GMC Vandura?

Fuse box diagram (fuse layout), location, and assignment of fuses GMC Vandura G1500, G2500, G3500, and Chevrolet Van G20, G30 (1988, 1989, 1990, 1991, 1992). The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers, and fusible links.

What happens if a fuel pump is faulty?

A fuel pump has the responsibility to supply the engine with the correct amount of fuel. If the fuel pump is not providing the right amount of fuel to the engine, then the engine will shut off entirely and you will be left stranded for hours. The bad news is that there is no bypass for a faulty fuel pump; you have to get it fixed or buy a new one.

Are there any problems with the Chevy 4.3 Vortec engine?

The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.

What causes an engine to shut off while driving?

Had a similar situation (just shut off while driving) on mine that turned out to be a broken wire to the crankshaft position sensor (CKP). Diagnosis started by pulling codes and finding a CKP code, so I would almost certainly start by pulling codes.

I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.

Why does my GMC Yukon engine start and then shut off?

Pressed it down and good pressure of fuel came out. I know it’s firing because it ran when I sprinkled fuel down the intake. On it’s own, it will start for a sec and then shut off. Something won’t allow the injectors to continue to pulse for some reason.

Where is the actuator motor on a GMC Sierra?

The goal is to leave the cam/cog in place on the end of the heater-a/c case and to remove the actuator motor only. The old assembly on the left and the new one on the right. Taking the new actuator motor and installing it on the old cam/cog.

Where does the air come from in a GMC Sierra?

This 2005 GMC Sierra came in with the complaint that the air will only flow from the defroster vents, regardless of where it is commanded to. This Sierra has auto a/c controls and no floor mounted center console.

What’s the gas mileage on a 2005 GMC Sierra?

The EPA-estimated gas mileage for the 2005 GMC Sierra 1500 is 14 mpg for city travel and 19 mpg on the highway. How much is a 2005 GMC Sierra 1500 worth? The average CARFAX History Based Value of a 2005 GMC Sierra 1500 is $10,823.

Where was the 2005 GMC Sierra 1500 purchased?

Accident reported. 1st owner purchased on 07/13/05 and owned in KS until 07/26/10 • 2nd owner purchased on 09/24/10 and owned in KS until 05/17/11 • 3rd owner purchased on 09/10/15 and owned in AL until .

When was the last serviced GMC Sierra 1500?

1st owner drove an estimated 19,952 miles/year • 2nd owner drove an estimated 8,966 miles/year • 3rd owner drove an estimated 0 miles/year. Last serviced at 181,728 miles in Murfreesboro, TN on 05/24/21 • Vehicle serviced • Pre-delivery inspection completed • Oil and filter changed.

What to do when your GMC Sierra stops running?

If you have fuel pressure after the above tests pull a spark plug and check for spark. If you don’t have spark check the cam position sensor in the distributor. If you have spark with no pressure it is the pump.

How does the tow / haul button work in a Ram 1500?

And when switched off, the sun goes off. In a Ram 1500, the tow/haul button makes the vehicle more stable when driving down or up. The driver can control the brakes more efficiently, and the truck remains steady. It works in the same way in a Toyota Tundra. When driving down a hill, there is a downshift of transmission.

When do you not need the tow / haul button?

You must also consider the weight of the load. If it does not affect the truck’s ability, then there is no need to use the haul button. For instance, if you are carrying empty crates, the tow/haul mode is unnecessary. The tow/haul mode is useful in rough and steep landscapes.

Why does my GMC Sierra 1500 not work?

If it ran good, you parked it, it got f’in cold and now it doesn’t work maybe you have some water in the system, a line may be frozen (never heard of this though). On the passenger side of the tranny there are the two coolant lines. The top port is the coolant return bottom is the tranny output. Follow them up to the rad or external tranny cooler.

Why is my return line cracking on my GMC Sierra 1500?

So you cracked on the return line. It should naturally drain. If the flow/pressure increased when the truck started that means that you are sucking fluid from the pan therefore the pump is working. That means that the problem is most likely in the valve body.

How do you shift a GMC Sierra 1500?

You would have to push the 2HI and 4LOW buttons at the same time, and hold them there til the red NEUTRAL light came on, if it’s electronic shift. 19 people found this helpful. You might try to shift the transfer case, after warming up the vehicle for a good amount of time.

What should I heat my GMC Sierra 1500 with?

You’ll need to heat the tranny pan for sure and maybe the lines and cooler to get it to move. Drag would be the fastest. Rent a large tarp and a hermon nelson type heater (works good 2 to 3 hrs at -30 and you should be moving).

Why does my truck run bad when it is really warm?

If it is telling the ECM that your engine is cold but it is really warm, it can cause it to run poorly. Usually, if the ECT sensor was bad, the truck would restart after the engine cooled down. I wonder if the cat is plugged. You should remove the 02 sensor from the exhaust manifold and try to start it.

Why does my GM Truck hesitate at low rpm?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. first the basics. I have a problem that is driving me nuts trying to figure out. at low rpm (truck in gear and moving) the truck hesitates, sometimes almost stalling out.

When did my 95 TBI Chevy stop running?

Timeline and service related incidents— Little over a year ago, it quit a couple times—I mean locked down like the key was switched off. My local indie tech replaced the distributor (O’Reilly’s).

What causes a GMC Jimmy 4.3 engine to die?

Gmc jimmy 4.3 will sometimes die while driving in highway when i let off the accelorater pedal. my 95 blazer when coming to a stop and braking it idles high and rough sounding and it sputters and will clink and clank as stoppung and almost dies no engine light on what could be causing this. Your engine may have a vacuum leak.

What kind of truck starts and then dies?

Forgot to mention this is a 1995 K1500 5.7 with TBI. When it first start if you give it some gas dose it stay runing?? My 2001 suburban did this it would start and die.

What to do when your GMC Truck won’t shut off?

Might have a system that keeps running until oil cools to a certain temp to keep from blowing the turbo? Should shut off when tapping the brake when key is removed though. Click to expand… Start by disconnecting the aftermarket alarm and see if it still happens. And next time just pull the fuel pump relay it’s easier.

Why does my GMC blower not shut off?

Once again, the symptoms are that the blower keeps going all the time even with the engine off and the key completely our of the vehicle. Also, the controls are unresponsive. The AC button and the interior circulation button are both lit and I cant switch them off. I also cannot turn the rear defrost on.

What kind of truck won’t shut off?

Truck won’t shut off? I have an “02” Silverado that won’t shut off with the key. The key works like normal but engine keeps running, Anybody have any ideas?

When does a GMC Truck shut off when in gear?

Chevrolet- GMC Truck Shuts Off When In Gear. After the motor heats up when i put the truck in drive. It also shut off when i put in reverse. The Chevy truck stalls . Sometimes the truck shuts off but mostly when i put the Chevrolet in drive it shuts off.sometimes it shuts off when i put the truck in gear. GMC Truck Shuts Off When In Gear.

What to do if your Silverado won’t shut off?

I have an “02” Silverado that won’t shut off with the key. The key works like normal but engine keeps running, Anybody have any ideas? Sounds like the ignition sw. to me. Any help will be appreciated, Thanks. Click to expand… To get it to shut off? Pull a main fuse from the underhood fuse panel.

What causes a GM truck engine to misfire?

It’s when one of these three (air, fuel or spark) are missing from the mix that the engine in your GM pickup, van or SUV starts to misbehave and misfire.

How often does a GMC Yukon engine die?

Engine cranks, briefly… Engine cranks, briefly starts and then dies. The engine cranks over, the engine will start and within one second the engine dies. This occurs once every other month. Took it to dealer for a major tune up and it still happens.

What’s the fuel pressure on a GMC Sierra?

Fuel pressure is good, 58 psi and holds around 50 psi after key is turned off It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug

Why does my car shut off after I stop driving?

If you car shuts off after you stop it is because the engine is very sensetive at the idle. This can be caused by a lot of things but is usually caused by a lean fuel mixture, causing the idle to drop too low. A faulty throttle body can also cause this.

When did GMC Yukon engine shut down while driving?

In January 2010, the dealer replaced the throttle body assembly. The current and failure mileages were approximately 115,000. Engine shuts down while driving: I have a Yukon xl 2002. Over the past 6 months the engine would suddenly shut down while the car is being driven. It has occurred at high speed and at low speed.

When did GMCs envoy start using Active Fuel Management?

I’ve read at many websites that the GMCs envoys, Chevys and saabs did start to come with AFM in 2005 with the LH6 motor,It says here it started in 2006 on the saabs, then the pick-ups got AFM in 2007.

What happens when the engine shut off without warning?

Car engine shut off with no warning, I started the car, drove about 50 yards to a stop sign, stopped, started to pull away and the engine completely died. No warning lights. I was halfway into the street. I put the car into park and was able to start it again.

Are there any changes to the GMC Sierra 1500?

New distributor comes with new ESC electronic unit, pickup coil, cap & rotor, also. No change. Next, read somewhere that the fuel pressure regulator diaphram if split could cause flooding. rebuilt throttle body unit, rebushed it and boiled it out and added rebuild kit and brand new Borg Warner injectors.

Is there a problem with my Chevy Silverado?

2001 Silverado Vehicle update: After running into another owner with the same truck and a year later (model) and the same symptom we both went to the same dealer explaining problem. The dealer felt they had to diagnose the problem because we werent both nuts, it must be a real issue to these trucks (daaa).

Why is my Chevy Silverado having difficulty fueling?

I told him to look for any obstruction in the fill pipe that may cause the fuel to back up the fill pipe and trip the nozzle to shut off. He says the only way he can fuel his truck is to hold the nozzle trigger at it’s lowest dispensing rate. Anybody have this difficulty before or any ideas what the culprit could be?

How often does the GMC Sierra come out?

Their four generations have appeared every five to seven years: 1999 to 2007, 2007 to 2014, 2014 to 2019, and 2019 to the present. Here’s a look at some of the most common problems the GMC Sierra has had over the years.

Why does my GM pickup engine not start?

How To Test The Fuel Pump On GM TBI Fuel Systems (for throttle body fuel injection fuel system equipped vehicles). A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.

What causes an engine to stall at idle?

If the ISC valve is gummed up with fuel varnish or dirt, it may stick, preventing the engine from maintaining the proper idle speed when the throttle closes. A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to compensate for idle loads placed on the engine by the charging system or A/C compressor.

Why does my car stall at highway speeds?

The engine may start and idle fine, but run out of power or even stall at highway speeds. If the engine starts right back up after stalling, the likely cause is low fuel volume delivery because of a weak pump. If the engine is running normally one minute, but suddenly quits, loss of ignition may be the problem.

Why does my Chevy Silverado stall at 55 mph?

While driving at speed (55 mph) truck will stall and within seconds restart on its own as if nothing happened, and continue to run as normal. Truck also has continues to stall after a couple minutes while at idle. Temp does not seem to be at issue as it does this when cold or at normal operating temp.

How often does my GMC Sierra stall at 15 mph?

When I go from 15 mph to a stop it will stall about 50% of the time. The other times it will recover after the tach drops to almost “0”. I have a 2001 Sierra 1500 with the 5.3 V8.

What causes a diesel tractor to keep stalling?

The 7 common causes of a diesel tractor stalling include: 1 A fuel delivery issue 2 Clogged or dirty filters 3 Fuel contamination 4 Blocked or damaged hoses 5 Incorrect parts 6 Broken fuel cap 7 Fuel shut off solenoid malfunction More

What are the symptoms of a misfire in a GM Truck?

The core symptom of a misfire is rough idle. This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see: P0300: Random Cylinder Misfire. P0301: Cylinder #1 Misfire.

How to troubleshoot a GM 4.8L 5.3L?

You can find this tutorial in Spanish here: Cómo Diagnosticar y Resolver Una Falla en Cilindro (GM 4.8L, 5.3L, 6.0L) (at: autotecnico-online.com ). The core symptom of a misfire is rough idle. This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see:

Why does my Chevy c1500 hesitate to start?

If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue. I would start by changing the fuel filter.

Why does my GMC Sierra 1500 not crank?

Use proper jumper wire between terminal 30 and terminal 87, the starter motor should crank the engine. Again, make sure tranny is out of gear and parking brake is set. If it cranks then hopefully the starter motor is ok. That might show the problem is on the control side of relay. I’m not saying the relay is faulty.

What causes a GM torque converter to lock up?

Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.

How does theft deterrent work on a GMC Truck?

In most cases, the theft deterrent duties are handled by a Passkey module. In those vehicles, if you are replacing a key, all you must do is match the resistance of the existing key that is in use. If you replace the theft deterrent module, then the module will learn the existing key resistance with the first start up sequence.

What to do if your Chevy fuel pump fails?

Chevrolet fuel pump failures are a common and growing problem. If you have a fuel pump harness connector that looks like the flat one on the right or the square one at the bottom, then consider replacing it when replacing the pump. More details about this are below, but you might want to download your Chevy manual to help.

How to check no fuel condition on GM 4.3L?

I’ve also included how to check a no fuel condition with starting fluid (although this is not the most effective way to test the fuel pump). It’s been my experience that misdiagnosing a bad fuel pump is a common occurrence on the 4.3L, 5.0L, 5.7L GM vehicles with the ‘Spider’ fuel injector assembly.

What to do if your fuel gauge is bad?

Fuel gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. The most common gauge problems are either a bad ground at the tank, or a sender problem. As with any electrical troubleshooting, it is best to check the fuse and all wiring connections are clean, tight and free of corrosion.

Why does my car not start when I turn the key?

This condition is usually due a failed fuel pump, a failed ignition coil, a failed ignition control module, a failed crank sensor, etc… that lets the engine crank (turn over) but does not let it start. A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine.

Why does my GM car say no start no crank?

How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.

What should I do about my 1994 Chevy Silverado?

My 94 Chevy Silverado was also sputtering, backfiring, missing etc… I changed the fuel filter to no avail, tried several things to get it to run smooth but nothing helped’ until a friend of mine who used to have his own shop told me about a memo he had received years ago dealing with this identical problem. here’s what worked for me!

Why does my car shut off when I turn the key?

The ignition switch is installed behind the ignition lock and get’s turned while you turn the key to start the car. Inside of this switch, small metal plates can build up corrosion and rust. If this happens, one of these plates may lose connection, and the whole ignition will get switched off.

What causes your car to shut off while driving?

When the ignition switch is frazzled, this will lead to a loss or power to your engine due to vibration such as hitting a round patch of street. The loss of power causes the engine of your car to die suddenly while you are driving on the road. Check out this video to see more details:

What should the voltage drop be on a GMC Truck?

The voltage drop should be performed with the fuel injectors disabled and while cranking the engine. The voltage drop should not exceed 200 mV. If the voltage drop is above 200 mV, replaced the effected cable. Please follow this diagnostic or repair process thoroughly and complete each step.

Can a faulty crankshaft sensor cause a car to stop?

The crankshaft sensor is necessary for your car engine to run on most car models. You also have a camshaft position sensor on some car models, which the car uses if the camshaft sensor is faulty. Here, a faulty crankshaft position sensor may not cause the car to stop entirely.

Why does my Chevy Silverado run out of fuel?

Another common reason that your Silverado may be starving for fuel is a bad fuel pump. The fuel pump is responsible for sending highly pressurized fuel to the fuel rails. The engine can die if the fuel pressure is not high enough to properly atomize the gasoline properly.

How to fix a GMC Sierra engine cutting out?

3. Connect one ohmmeter lead to power supply terminal of switch side of 48-pin connector. Connect other ohmmeter lead to appropriate terminal of 48-pin connector according to selected switch position. If continuity does not exist for selected switch position, problem is open in that circuit between 48-pin connector and switch, or faulty switch.

What kind of engine does a 1996 GMC Sierra have?

I have a 1996 GMC Sierra K2500 with the vortec 350 and the engine will cut out (and return to power within seconds, but sometimes not too.) Randomly (Losing fuel pressure) without notice.

Why does my Silverado Sierra keep shutting off?

Clock, A/C, cruise control reset themselves and all dash lights flash. Twice when I turned the truck off everything shut off like I had a dead battery, but would come to life minutes later. Alternator and battery tested good. Does anyone know where I can start troubleshooting this? seaoatsguy wrote: I have a 2008 Silverado LT 1500.

I have a 1996 GMC Sierra K2500 with the vortec 350 and the engine will cut out (and return to power within seconds, but sometimes not too.) Randomly (Losing fuel pressure) without notice.

Is there a safety feature on a GM Sierra?

Its a safety feature so you dont pull up in your garage and kill yourself. Leave the key in the car and it wont quit. Yes it will shut off — after 2 hours, according to the 2019 manual (page 228 in sierra version) , under extended parking.

What to do when your GMC Sierra won’t crank?

When starter won’t crank, pull the starter relay in underhood fuse block. Terminal 30 is hot all the time. Use proper jumper wire between terminal 30 and terminal 87, the starter motor should crank the engine. Again, make sure tranny is out of gear and parking brake is set.

When did my car lose power then died?

While driving car lost power then died and now won’t star… I was driving and all of a sudden when I hit the gas there was nothing there I got it where I was going and then it died while I was still driving we have not been able to get it to start since it does crank but does not start. My car has 185000 miles.

How to fix a car where the gas pump keeps shutting off?

How to fix the issue where you go to pump gas at the gas station and the gas pump keeps clicking off even though you have an empty tank. I will show you what to look for and how to unclog your charcoal canister and vent tubes from your gas tank. Trick to clearing your evap system from debris or clogs..

Where is the fuel pump cutoff switch on a GMC Truck?

We’re doing a dirt rack race in May against other high schools and we got a car donated to us by the people organizing the race (94 Escort LX). Our car has that cutoff switch and we need to put a fuel pump cutoff switch on the dash (not a cutoff activated by an impact, but one you manually turn off).

How often does your engine shut down while driving?

I do know that the engine is completely shut down and now it shuts off while sitting at an idle, but it gives no warning.This only happens once every 2 weeks or so. Running fine, then dead. But will start later with no issues?? Doesnt make sense. Anyhow, anyone have this problem before? Or atleast know what it may be?

Are there any problems with the GMC StabiliTrak?

At first, the dealer said they could not duplicate the StabiliTrak problems, but after much persistence, they agreed the steering angle sensor was defective and it has been replaced. Unfortunately, the vehicle is still having problems.

Why does my GMC air conditioner stop working?

For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.

Why does my Silverado 1500 engine not start?

Restarting the engine from this state may be difficult. The fuel can vaporise due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. A vapor lock is more likely to develop when the vehicle is in traffic because the under-hood temperature tends to rise.

Why does my Car start but wont move when in drive?

There can be a few reasons that a car starts but wont move when in drive. We’ll cover a few of the most common ones with you, to help you get back on the road. Low transmission fluid can cause a car to not move in drive. Transmission fluid is more than just a fluid that keeps the parts of the transmission lubricated.

Why does my Car start but the starter won’t crank?

If the battery checks out OK, but the starter still won’t crank, there could be a number of possible reasons. Here are some of them: • The ignition switch could be bad – it’s a common problem. An ignition switch is an electrical switch installed at the back of the ignition lock mechanism.

What does it mean when your GMC Sierra won’t start?

The first and most common is when it won’t turn over. This just means that the engine doesn’t move when you turn the key. The second way that your Sierra won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own.

What kind of GM Truck won’t start?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Won’t start ? Location:Michigan. Drives:2019 Silverado RST Crew Cab. I have the same issue, started yesterday on my 2020 Denali 1500 with the 6.2.

What does it mean when your car says no start?

A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine. The most common problem, that causes this condition is a failed starter motor. If your vehicle is suffering a No Crank Condition, this tutorial may be a good starting point: How To Test The Starter Motor (GM 4.3L, 5.0L, 5.7L).

What to do if your GMC Sierra stall?

If its a mechanical problem with the spring or pintle in the valve, it will not set a code for the IAC. If you decide to replace it. Your PCM will have to go through the relearn. Another words, it may take up to 5 miles of driving or 15 minuts for the idle to stop fluctuating. Good luck

Can a Chevy truck move in 2WD auto?

Truck will not move in 2wd, but it will in 4wd Auto. Was driving down the highway and the truck just felt like it was suddenly in neutral, reved up but not engaging wheels (transmission shifter still in “D”). It did not make any noise, or poping or clunking, it was just disengaged.

Why is the drive shaft on my Chevy truck not turning?

With the truck in gear, running and not moving, the drive shaft is not spinning. Also with the truck in neutral, the drive shaft will not turn. Here is the thing that’s got me puzzled.

What does it mean when your transmission slams into gear?

When your transmission slams into gear it can be a sign of abnormal pressures, worn components or even a low fluid level. Start by checking your transmission fluid level and condition on the dipstick. If you find a low fluid level, ad BlueDevil Transmission Sealer and top off the fluid to get things back to normal.

Why does my GMC Sierra make a whining noise?

If it changes with the engine, it’s most likely going to be an accessory bolted to the engine (or the radio, shut it off and see if it stops). If it stay constant as you rev the engine it’s going to be something else. A whining sound when accelerating is almost always caused by a bad accessory attached to your Sierra’s engine.

Is there a problem with the Chevy running light?

The Chevy daytime running light problem is a far-reaching one. For more than a decade mechanics have been replacing melted factory installed sockets and bulbs. We’ll also discuss ambient light sensor problems in this article.

What should I do if my Silverado Sierra won’t start?

Attempt to start the engine. If it doesn’t start then release the key back to the on position. Watch the security light. After 10 to 15 minutes the security light should turn off. Turn the ignition off and wait 5 seconds.

What to do when your Silverado Sierra dies?

I’ve tred different its hard to scan when runs for 2seconds time. The keys might need to be relearned into the factory system. My old Jeep would do the same thing. One thing to try. Turn the ignition to the on position. This is the position where all the lights and icons are on in the dashboard but don’t start the car. Attempt to start the engine.

When does GMC Sierra heavy duty come out?

Greater things are in store for the 2021 GMC Sierra 1500 and Sierra Heavy Duty. In addition to more technology, a wider selection of available options and new standard equipment will be forthcoming. See how GMC is continuing to deliver the goods with professional grade trucks.

What is the payload capacity of a GMC Sierra 1500?

Payload Capacity 2019 GMC Sierra 1500 Engine Payload Capacity 4.3L EcoTec3 V6 2,500 lbs. 2.7L Turbodiesel 2,280 lbs. 5.3L EcoTec3 V8 2,430 lbs. 5.3L EcoTec3 V8 w/ DFM 2,190 lbs.

When to replace a GMC Sierra 1500 part?

Usually the hardest part about maintaining a car or truck is searching for a reasonable source for outstanding parts. If your GMC Sierra 1500 needs maintenance, the optimum answer is installing a new first-rate replacement or OEM part to keep your car in the best shape.

Which is the most trouble free GMC Sierra?

By far, the most trouble-free model has been the 1997 GMC Sierra 1500, which has received very few complaints. However, the 2014 model has had by far the most reports of issues, primarily having to do with sub-par headlights and poor visibility. GMC Sierra 1500 accessories for that model year have also had a number of issues.

What do the stripes on a GMC Sierra mean?

Adding 1999-2017 rocker stripes to your pickup, for example, gives it a look of swift and stylish power, suggesting the freedom of the open road and the wind blasting past your window. Some of them include the GMC logo or other lettering or symbols.

When did the GMC Sierra 1500 year come out?

Your Sierra 1500 Year? Handsome additions to your truck’s appearance that won’t interfere at all with its rugged usefulness, 1999-2017 decals, stripes, & graphics freshen up the looks of even the hardest working GMC Sierra.

How long does it take to change fuel filter on GMC Truck?

Assuming its an 02 by your username, change the fuel filter. If its completely clogged it could cause this. It’s $10 and takes 5 min. Assuming its an 02 by your username, change the fuel filter. If its completely clogged it could cause this.

What causes engine to stall at high idle?

The first issue is the high idle. The question is was that caused by a mechanical issue or an electronic issue. The 3 codes come from a higher idle condition that isn’t controlled. If the TPS sensor sees closed throttle, but a high idle with matching MAF/Map signals, it flags the codes.

Why does my Chevy truck stall at idle?

Filter is not that old, and if plugged or if pressure regulator is malfunctioning, why do I never see fuel pressure at throttle body so much as waver lower than 12psi? Also, many times the lean condition will start just off idle so bad so that truck wil fall flat on its face and stall.

What was the initial problem with my truck?

The initial problem was the truck stalled and died. The following parts have been replaced: spark plugs, wires, fuel filter, distributor, cap, rotor, pick up coil, map sensor, throttle position sensor, and idle air control valve.

Why does my Chevy truck shake at idle?

While the truck is idling with 02 lean, a quick shot of carb spray in the throttle body will cause the 02 to go rich. And when the truck sometimes starts shaking at idle it will smooth out with carb spray. I jst don’t understand why the computer is not trying to richen the mixture up based on the 02 saying lean.

What causes a truck to hesitate when accelerating?

Hesitates When Accelerating: the Initial Problem Was the Truck The initial problem was the truck stalled and died. The following parts have been replaced: spark plugs, wires, fuel filter, distributor, cap, rotor, pick up coil, map sensor, throttle position sensor, and idle air control valve.

What was the spark plug on my Silverado Sierra?

Pulled spark plug to check for spark which it had however plugs were bad and the spark was orange instead of blue. I preceded to replace the fuel filter to see if that might be it, (kinda reaching). After filter was replaced, I was able to start the truck and get it home.

Why does my Silverado Sierra engine keep stalling?

I think you have water in the fuel. Whenever I remove a fuel filter, I dump the contents onto a bench or glass jar and look at it. Remove a fuel line and get a fuel sample. It could also be a IAC issue or a gummed up throttle body. Might try and clean the throttle body and iac.

How to wiring up an electric fuel pump?

Electric Fuel Pump Wiring Diagram | GTSparkplugs Simple and Safe electric fuel pump wiring diagrams Safe Electric Fuel Pump Wiring Wiring up an electric fuel pump is pretty simple, and taking a few extra precautions can make it much safer than just hooking it up to a manual switch or ignition circuit.

Do you need a relay for a fuel pump?

Well from the looks of things they don’t use a relay with it as the switch seems to be capable of directly controlling fuel pump, but unclear how much current it can handle reliably. Another potential problem is you will need to route thicker wires from your battery (which may be in the rear) to the switch and then back to the pump.

How big is a ps114 fuel pump harness?

2 Terminal Basic Normally Open PS114 2 Terminal 1/8″-27 NPT PS113 2 Terminal 1/4″-18 NPT 3 Terminal Normally Open, and Normally Closed PS122 3 Terminal 1/8″-27 NPT PS118 3 Terminal 1/4″-18 NPT 2 Terminal Harness Adapters(Harder to find)

What are the parts for an electric fuel pump?

PS118 3 Terminal 1/4″-18 NPT 2 Terminal Harness Adapters(Harder to find) Part Number 1053 Harness Pigtail AIRTEX/WELLS 1P1685 3 Terminal Harness Adapter (Should work with 2 Terminal) Wells Part Number 974

When does the Chevy Silverado 1500 shut down?

See all problems of the 2009 Chevrolet Silverado 1500 . While slowing down to make a turn, usually always using turn signal, my truck will completely shut down in the middle of the intersection with no warning. The engine shuts down and all electrical is lost.

Why does my Chevy Silverado not go over 25 miles an hour?

If so then remove the 2 closest to the engine, they are almost touching the manifold. If that helps then there is a blockage in the exhaust. Most likely a bad catalytic converter or a bent pipe. If the converter is bad make sure its replaced with a proper OBD 2 cat, otherwise you will be going through this in 6-18 months from now.

Can a Chevy Silverado go more than 103kph?

No, it’s still doing the same thing. When I punch it at 110 or above, it will cut out and drop to 103kph, and will not go any faster then that until I stop, and shut it off for a minute, and then it will resume it’s normal expected job, unless I punch it again, and then it reoccurs. If I punch it on the way up, it will not go more then the 103.

Can a 1998 GMC Sierra 1500 be tested?

The 1998 GMC Sierra 1500 has not been tested. Like what you see? Find the best deal on a GMC Sierra 1500 today. There are for sale near you. Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats.

Are there any problems with the GMC Sierra 1500?

Here are total complaints by model year for the GMC Sierra 1500. Overall the worst problem category is GMC Sierra 1500 lights problems. Although the 2014 GMC Sierra 1500 has the most overall complaints, we rate the 2015 model year as worse because of other possible factors such as higher repair cost or more problems at lower mileage.

What kind of problems does a 1993 Jimmy have?

I have a 1993 Jimmy. It has been having starting issues. We have heard everything from the fuel injectors needs to be cleaned to replacing the water pump. We have replaced the computer twice, the second time the garage replaced it free. But now it does not start but turns over.

Is there a removable chip on a 1997 Chevy Silverado?

There is no removable chip on a ’97 PCM. The computer can be reflashed (reprogrammed) with updated software if you have the equipment. Generally, a reflash will not rectify a situation that arose so late in the truck’s life.

Why is my GMC Sierra 1500 stalling and dying?

There is no code given. Have changed the injectors, timing, fuel tank, fuel pump, fuel pump, map sensor, cooling temp sensor on front of block, rebuilt the tbi, air idea valve. None of this hasite helped. The truck starts and dies. Have to give a little gas to keep running. While driving have to 2 foot it so it won’t die.

What causes a Silverado Sierra to hesitate when accelerating?

As of today it starts fine and idle’s fine but when accelerating you can get up to speed by slightly pushing the pedal,but if you try to give it some gas anything above slightly pressing the pedal it hesitates and backfire once you push it to that point then it hesitates at any speed when trying to give it gas Just guessing here. 1. Spark Plugs?

What does rough idle mean on a GMC Sierra?

rough idle, stalling, loss of power. o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so.

What causes a GMC Sierra 1500 to lean?

The only other thing that will cause a lean condition is low fuel pressure. A vacuum leak will be problematic at idle and go away with higher rpms. Low fuel pressure will get much worse at higher rpms. 123 people found this helpful.

What happens when the diaphragm is ruptured on a GMC Sierra?

If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full. When it initially started to go it probably slowly flooded the engine to where it seemed to run ok but the excess fuel created a ton of carbon coating the O2 sensor. Since no air could pass through it, it gave a false lean reading.

What happens when a GMC Silverado shuts off?

How long does a GMC Silverado run before it stalls?

GM’s Passlock/VATS anti-theft system does not let it run for 5-10 seconds; it starts and immediately stalls. It works the same on new and old GMs alike.

Why does my Sierra engine get hot while running?

Hate to think the heads might be cooking, due to a low coolant level, but then I don’t know the design that well to know for sure. My 08 Sierra V6 with 42K miles took 1/2 gallon of Dex-Cool “WHILE RUNNING” & warmed up, and seems fine now.

Why does my Silverado Sierra jerk at high speeds?

If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.

When I go from 15 mph to a stop it will stall about 50% of the time. The other times it will recover after the tach drops to almost “0”. I have a 2001 Sierra 1500 with the 5.3 V8.

What kind of acceleration does a GMC Sierra have?

Alright I’m going to do the best I can to try and describe what is going on. I have a 2005 GMC Sierra with the 5.3L H.O. 139K. The truck starts and idles without an issue. Durring light acceleration and at low speeds (city driving 35 mph or so) the truck seeems to run fine.

Where does the second kind of engine problem occur?

The second kind of problem will occur from the rear of the vehicles tail pipe which is a rich fuel mixture problem that can happen when fuel delivery parts fail such as an injector, fuel pressure regulator or intermittent ignition system failures.

What should the idle rate be on a 1997 GMC Truck?

Underdog, I don’t know the 1997 5.7, but 1000rpm sounds like a high idle, not where it should “bottom out”. A V8 should idle at 500rpm. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn’t charge it, when I started it up it ran like you describe for a few days and then it was fine.

Why is my Chevy Silverado running rough at idle?

Really, your Silverado will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Silverado happens to have them, they can go bad and cause a rough idle.

What’s the idle RPM on my Chevy Suburban?

My 1997 Chevy Suburban (5.7) is acting up on me. When I start it up the RPM and idle seem fine. As I let it sit for a couple of seconds the RPM’s slowly begin to drop until they finally bottom out at about 1K. As soon as I put it into Reverse/Drive etc. the RPM’s drop below that mark and it struggles to stay running.

What to do when your Chevy Silverado won’t start?

13 people found this helpful. My 2004 Silverado won’t start when it’s rainy so I sprayed the heck outta the wires and cap with wd40 it started right up ran till it rained 2 weeks later now just starts I can hear the fuel pump running but it dies after about 40 secs dies then will not start till it sits for about ab hour any suggestions

Why does my GM Truck start then die?

He was thinking fuel pump or fuel filter. He was about to take it to a dealer to be checked out when someone told him to turn the key to the on position and leave it there until the dash lights went out then start the truck. He did this and says the truck is running fine now. It reset the security system.

Can a Chevy Silverado 1500 start and run?

Although I tried to start it multiple times over a couple weeks I gave it one last try after I called the tow truck. It started right up and engine stayed running like it was supposed to. No more problems for almost a year until about a week ago. I did nothin to fix it a year ago.

Why does my car not start when I start it?

There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start…it’s because one of these components is missing from the mix.

What happens when there is no power to the starter motor?

If there’s no power to the starter motor but power everywhere else you’d hear a “click!” noise when you turned to start but nothing else – ie. no whirring or cranking noises.

Why does my Chevy Silverado turn over but not fire?

145 people found this helpful. Have a 99 Chevrolet 4×4 Silverado with 5.0 it was hot wired by previous owner. It did crank but replaced the steering wheel column with new wires and now it will turn over but won’t start. The fuel pump is connected directly to the battery.

Fuel pressure is good, 58 psi and holds around 50 psi after key is turned off It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug

Can a Chevy C / K 1500 engine not start?

Chevrolet C/K 1500 Questions – truck will not start, engine turns, but does not fire at all. – CarGurus truck will not start, engine turns, but does not fire at all. other computer-related things that could be interfering?

What causes random stalling on a Silverado Sierra?

Keep the ideas coming as random is this happens, the frequency seems to be increasing, but I still can’t identify the point of failure. zacharyh687 wrote: It could also be a IAC issue or a gummed up throttle body. Might try and clean the throttle body and iac.

Why is my Silverado Sierra engine popping up?

NO engines popping up. When I got to it I tried to go through the basics of troubleshooting- Turned on key to listen for fuel pump, pump came on. Pulled spark plug to check for spark which it had however plugs were bad and the spark was orange instead of blue.

How long has my Silverado Sierra been running?

We have had it for about 9 mos and put about 7k on it. Last week it started randomly stalling/dying, most times starting right back up. Then it died on my son and wouldn’t start. NO engines popping up. When I got to it I tried to go through the basics of troubleshooting- Turned on key to listen for fuel pump, pump came on.

How much does a GMC Sierra engine hesitate during acceleration?

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Our certified mobile mechanics can come to you now. GMC Sierra 1500 HD Engine hesitates during acceleration Inspection costs $89 on average.

Why does my Chevy truck sputter when I accelerate?

The engine starts and runs fine, when I leave for or from work. But when I accelerate out of the parking lot it hesitates and really sputters. If you try to accelerate more it backfires a few times and then takes off like there’s nothing wrong.

What’s the fuel pressure on a 1996 Chevy c1500?

I stuck a fuel pressure gauge on the fuel rail port and was reading about 50 psi. Unfortunately, as high as that sounds, the injectors won’t even open until you are at about 60 psi.

What to do if your truck won’t start?

If you don’t hear it leave the key on while you hit the bottom of the fuel tank with a rubber hammer. then try to start it if this gets it started then you need a fuel pump. If it don’t then you need to check fuel pump fuses an relays. You need to get a proper diagnostic at a repair shop.

How long does it take for a GMC Sierra to stop stalling?

If you decide to replace it. Your PCM will have to go through the relearn. Another words, it may take up to 5 miles of driving or 15 minuts for the idle to stop fluctuating. Good luck My 2002 with the 8.1 had a similar problem for a year for which the dealer or various independent repair facilities couldn’t find a solution.

Why does my fuel pump only run for a few seconds?

This sound is the electric fuel pump trying to prime the fuel system. It will only run for a few seconds and then shut off. If you are not sure you could hear it or if there is noise outside; you may have to try it several times. Turn the key on and wait then turn it off.

Why is my Dodge Ram 1500 running rough?

On Feb 22, I changed the spark plugs, Bosch Platinum, spark plug wires,Bosch, and PCV valve. I also performed a compression test, where the range of pressure was 130 to 160 psi. On Feb 29, I found a coolant leak and thought it may have been coming from around the thermostat. Up to this point, the truck had been running fine.

Why does my GMC Sierra 1500 run rough at idle?

The spray smoothing out the rough rpm is an indication of the engine running lean, could be low fuel pressure, could be a vacuum leak. With it running rough at an idle and smoothing out at a higher rpm is a general sign of a vacuum leak.

What does the fuel smell like in a GMC Sierra 1500?

If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.

Why did my 2000 Chevy Silverado stop running?

My 2000 Chevy Silverado Pickup stopped running. It will start My 2000 Chevy Silverado Pickup stopped running. It will start and run for a few seconds, but then stalls. I’ve changed the fuel filter, rotor and rotor cap with no success.

Can a 2001 Chevy Silverado die while driving?

Re-start after a few minutes and runs well until driven a short distance, the … read more I have a 2001 Chevy Silverado. While driving my truck began to loose power while pressing the gas pedal and eventually died. It would restart but whould then quickly die.

What does cranks but wont start mean?

SilveradoSierra.com • Cranks but wont start. Fuel problem? : Engine Cranks but wont start. Fuel problem? Well i hopped in my truck this morning to go to work, everything was normal. I started it up and let it idle for a second or two and then right when i was about to put it in reverse it just died like someone flipped a switch to kill it.

Why does my 1988 Chevy Silverado not start?

I’ve got a 1988 K1500 with the 350 FI. It won’t start, turns over, but won’t start sounds like fuel problem. Fuel pump has been changed, fuel filter, Fuel pump relay, Fuel pump fuse, ignition coil, all have been changed or checked. Any ideas. It is getting power, just seems to not be getting any fuel. The possibilities are endless.

What to do if your Silverado Sierra wont start?

get a rubber headed hammer and have 1 person crank the motor and another bang on the fuel tank. Most of the time it will work to get it started thats when u know its the fuel pump. It may not work though and it still could be that.

What to do if your GMC Sierra won’t start?

Let sit for awhile, turn key, won’t start, turn key off, turn key again, starts up and runs great. A week later, same issue. I went to work everything great, went to go home, wouldn’t start. Tried to turn key a few times, won’t start, let sit about 15 min., turned key, started up. Stop to get gas 15 min. later, wouldn’t start. Stranded for 2 hours.

Why does my car not start when I crank the engine?

If the engine doesn’t crank, or makes an unusual noise when cranking, you may have a starting system problem. The car’s security system may have made an error that disabled the fuel or ignition system, or the chip in the key may have failed.

What happens when you hit the gas pedal at the last light?

You’re running a little late, but sitting in pole position at the last light before hitting your employee parking lot. So when the stoplight turns from red to green, you punch the gas pedal, hoping to sail through the intersection a little, um, faster than usual. But instead of moving when you hit the gas pedal, your car hesitates.

Why is my overdrive not working on my car?

Band Failure – Most of the time the overdrive gear is going to fail to engage due to the wearing of the band for the Overdrive. The servo will no longer be able to engage it because of this wear. This is the physical problems that stops overdrive most of the time if no other issue is detected. Bands are pretty affordable.

Why did my Chevy Silverado 1500 go off while driving?

I drove it for about 15 minutes. The battery gauge showed 14 volts while driving, so the alternator was good. The headlights went off when I turned the key to the on position with the truck in park. Yesterday they had stayed on.

Why is my overdrive gear no longer engaged?

Why is my 4L60E not shifting into overdrive?

As the 4L60E ages, one of the most common problems that it develops is that it won’t shift into overdrive anymore. Without overdrive, your vehicle turns into a time machine and takes you back to an era where it was the norm for a vehicle to scream down the highway at 3000 RPM.

Why is my Chevy Silverado transmission not working?

If any accessories have been added like a remote start or aftermarket sound equipment, the wiring may have been damaged or compromised. Sometimes, you have to remove them. Gauges that are not working could mean a faulty ignition switch. This has been an issue on this truck series.

What was the problem with my GMC pickup truck?

Specifically, the lawsuit claimed the active fuel management (AFM) system, piston rings and PVC system in these vehicles were faulty and caused excessive oil consumption, as well as premature spark plug degradation and engine malfunction.

What happens when you press the gas pedal?

If I press the gas pedal it dies. It’s been acting weird for a while now. For instance, when I take off from a dead stop at a light it sort of hesitates when I hit the gas. Also has been hard starting now and again, meaning it turns over for longer than it should before it fires up.

Why does my Chevy Silverado want to turn over?

Truck wants to turn over but will act as if is starving for fuel,wait ten minutes, it start. Been happening frequently lately. I also was told it was the security system Will turn key and it is like no power from battery to starter, but have lights, radio, etc. Turn key again or sometimes multiple times, to no avail.

Why does my 1993 Chevy TBI stall at idle?

Timing is steady and not jumping all over. It is a fuel issue. The only code that ever sets is a P044, lean exhaust, and the exhaust is really lean. We have swapped PCM/PROM with a same year Suburban, no change. Both vehicles run the same as this did using the other’s PCM.

What kind of car stalls after engine heats up?

The Chevrolet Cavalier is a compact automobile produced from 1982 to 2005 by General Motors. car starts and runs fine until engine heats up to operating tempature, then it stalls, it will restart but keeps stalling until engine cools down. What can cause this? Answered!

What’s the problem with my 1997 Chevy Silverado?

I have a 1997 chevy 1500 siverado with a 5.7 vortec that has been having a problem for about 6 months now. The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump.

Why does my Silverado go slower past half Trottle?

The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump. It actually goes slower than below half throttle. The bogging gets consistently worse the more throttle you give it.

What happens if your fuel pump is failing?

The fuel pump feeds fuel to the engine at a reliable rate; without this pump, your fuel would just sit in your tank, useless and inert. If you’re attentive, you can catch the symptoms of a failing fuel pump and have it repaired or replaced before it leaves you stranded on the side of the road.

When is it time to replace your fuel pump?

Like any device, however, fuel pumps can and do eventually wear out after thousands of miles of use. If your car struggles with weak or inconsistent power, it may be time to replace the fuel pump on your car. Have you ever had to deal with a failing fuel pump?

What kind of idle does a GMC Sierra have?

After the truck starts and is warm at a stable idle in park/neutral it’ll rev up fine. But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running.

What causes a Chevy C / K to stop running?

A leaky fuel pump will drain the line up to the carb, but about 15 seconds of cranking will fill the line again. 2. A sticking mechanical choke or a bad electric choke. Try; when you return to your truck from the Quicky Mart, put the accelerator slowly all the way to the floor, let your foot up slowly and then crank the engine.

Why does my Chevy Silverado keep starting up?

If it keeps flooding you may need to get the ignition retarded or have the engine tuned. Automatic choke issues may cause problems. It could be the fuel filter needs a change. Using an engine additive may cause problems too as it dissolves so much sediment in your tank that it clogs everything up.

Why does my Silverado truck Smoke at startup?

So last year I noticed my truck would occasionally smoke at startup. First thing I did was disabled AFM. This worked for a while but the problem came back. It did not happen to often so I just ignored it. Now, for the past week or so, it is happening everytime the truck sits for an extended period of time.

Why does my Chevy Silverado 1500 not start?

Hi! My question is in reference to my 99 Chevy Silverado 1500. It cranks, but won’t start. I checked the obvious (out of gas, etc.) and changed the fuel pump/filter. It still won’t start. Cranks and will 1/2 catch for a second, but then nothing.

What kind of problem does my Chevy Silverado have?

I have a 92 Silverado 4.3 V6, 5-spd manual trans. Truck will not always start when turning the key, Dash lights and radio fire up but engine does not fire. Most of the time I hear a click and sometimes there is not click at all. If I let the truck sit for 5-15 minutes and try again, it starts right up.

How can I tell if my Chevy Silverado is starting?

Check the compression with a compression gauge. Use a spark checker to see if it has spark. Put a timing light on it and see what it shows. Use a fuel pressure gauge to see if it is getting fuel pressure. Is the air filter/tubing plugged? Is the catalytic converter plugged?

Why does my car stall at low rpm?

The will likely force your computer to stall the engine and only allow it to run at low RPMs, which means the car will only move at slow speeds. This is a safety feature enforced by the computer so that your engine doesn’t get too damaged.

Can a bad idle control valve cause stalling?

This is controlled by the engine’s computer. Sometimes parts go bad, which results in your car idling strangely or stalling. Check to see if your idle control valve is functioning properly before attempting to replace it. Look for a high engine idle. A common symptom of a faulty idle control valve can be a high idle.

Why is my GMC Sierra 1500 stalling out?

Checked it, cleaned it off, verfied that contact wanhers are all steel and attract a magnet, reinstall the ground wire. No change. Next, read somewhere that Engine Coolant Temp Sensor if malfunctioning could cause the ECM to think the engine is at -40 deg F in dflt mode.

Can a stalling engine be intermittent driveability?

Intermittent driveability problems of any kind are always a challenge to diagnose. When a customer brings you a vehicle and complains of a stalling problem, you may not have much to go on other than their description of what’s happening and when it happens.

Can a corroded ECM cause a car to fail?

If the wires to the transmission or fuel injectors become corroded, they can lose conductivity, leading to a failure. Fortunately, these issues can usually be resolved by replacing the corroded wires. If one of the wires shorts out to the frame, the ECM may fail entirely.

It’s when one of these three (air, fuel or spark) are missing from the mix that the engine in your GM pickup, van or SUV starts to misbehave and misfire.

Why does my Chevy Silverado not turn over?

Have a 99 Chevrolet 4×4 Silverado with 5.0 it was hot wired by previous owner. It did crank but replaced the steering wheel column with new wires and now it will turn over but won’t start. The fuel pump is connected directly to the battery.

Why does my GMC Terrain shut off while driving?

Vehicle began to use excessive amount of oil and idel up and down and sometimes even shuts down. After about 3 months while driving on the interstate it began to shut down while in motion.

What are the specs of a GMC Vandura?

Listed below is a general features list along with vehicle specifications for the Third Generation (1971-1996) General Motors G-Series Vans. The GMC Vandura version is the primary focus below, however the ChevyVan shares many similarities. For more information check out the Chevrolet Van Wikipedia page.

When did my GMC Terrain engine shut down?

In May 2017, Engine begin sputtering while driving, shortly after, the engine and dashboard power died. I was able to restart and park safely. When I returned to tow the vehicle, I could not access power or start engine.

Where does the clicking come from on a GM Truck?

The clicking starts when I crank the truck up and last about 15-20 seconds.I hear the same clicking when I turn the truck off and it lasts about the same time.Like I said it is coming from behind the glove box above the heater core.The heater core has not shown me signs of it being bad,no leaking,and no foggy windows.

Why does my truck not start after sitting for a long time?

This can happen when the check valve in the fuel pump assembly leaks pressure back into the fuel tank. The longer the truck sits the harder it is to start. Try this, turn the key on for 2 seconds then off, do this two more times then try and start it.

Why are the handles on my GM Truck broken?

If you don’t see broken plastic on either of the door handles, chances are that what broke are the small clips that hold the steel rods in place on the back side of the door handles.

Why are all the gauges on my GM Truck not working?

Last night I was comin home from the store and realized my speedometer wasn’t working (ins’t the first time) so i hit the dash, then realized NONE of the gauges were working.. Gas gauge, almost empty. Water temp, cold. No oil pressure. The alt wasn’t charging. No tac and no speedometer.

What kind of engine does a GMC pickup have?

This is especially true for GM pickups, so for this story we focused on crate engines for the most popular GM pickups and SUVs–the 1973 to 2013 model-year full-size pickups and SUVs from Chevy and GMC. This encompasses the four most popular generations of light trucks from The General.

How to test the fuel pump on a Chevy Silverado?

All of the following fuel pressure test gauge kits will help test the fuel pump on your Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL): As I mentioned at the beginning, testing the fuel pump simply involves connecting the fuel pressure test gauge to the fuel system.

How to test a GM 4.3L fuel pump?

More GM 4.3L, 5.0L, and 5.7L Tutorials. It’s very important that you start off your fuel pump relay diagnostic by first testing the fuel pump pressure with a fuel pressure test gauge. If the fuel pump relay IS NOT activating the fuel pump, the fuel pressure test gauge will register 0 PSI when cranking the engine.

Can a GMC Sierra run without a fuel pump?

Without gas your Sierra will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).