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.

How to troubleshoot a no start GM 4.3L?

The following tutorial may be of help: How To Troubleshoot A No Start (GM 4.3L, 5.0L, 5.7L). CASE 3: The engine started and stayed running. 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.

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).

What causes a car to stall on a cold start?

It also manages the idle under changing engine loads, like when you kick on the air conditioning, turn on the headlights, or turn up the radio. When the idle air control valve malfunctions, you may experience a rough idle or the vehicle may stall entirely. This is especially true on cold starts.

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.

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’s the final intake torque on a 98up?

Try looking through the “No Start” Problems discussion too. For 98up Blazers the final lower intake torque is 11 ft lbs reached in 3 steps – any higher will cause other problems. Most shop books give in inch pounds and most of us have ft lb wrenches. Just wanted to document the correct torque for newer Blazers.

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 makes a GMC Sierra 1500 go bad?

It’s a fuse in the fuse box that looses connection it’s a power fuse 10 amp in the fuse box next to driver door all gauges will quit working except one of I remember correct and that’s oil pressure I believe it makes tranny default to third gear on take off and also slip into a neutral state .

When did the Chevy S-10 pickup truck come out?

The Chevrolet S-10 is a compact pickup truck that was produced by Chevrolet. It was the first domestically built compact pickup of the big three American automakers. When it was first introduced as a “quarter-ton pickup” in 1981 for the 1982 model year, the GMC version was known as the S-15 and later renamed the GMC Sonoma.

What was the problem with the 1988 S10?

Original problem was slow starting, had to crank about 15 seconds before it would catch and run. Then it wouldn’t start without putting a small space heater next to the intake manifold 20 to 30 minutes. Then it would go like before after about 15 seconds cranking. Then it died on the road.

When did the Chevrolet S-10 Xtreme stop being made?

The SS was discontinued in 1998 and was replaced by the S-10 Xtreme for the 1999 model year. A 4.3 L V6 (which was optional on regular S-10s) was the standard engine used in the SS]

What kind of engine does a 1988 Chevy S10 have?

I have a 1988 S-10 with a 2.8L V-6 Carb body fuel injection. The vehicle starts every time and will run from a few seconds to sometimes up to 15-20 minutes. Then it just dies like you turned the key off.

Why does my GMC S15 stall after dying?

After it dies, it is very hard to restart unless it is left alone and cools a bit. If the IAC is unplugged, the engine will run at high idle fine. When plugged back in, the correct idle resumes and it may run a few seconds or a minute before it dies. I am getting fuel to the injectors. Any ideas on what is wrong?

Why does my Sonoma S15 stall and die?

I have a 98 sonoma ( 4 cyl.) that runs great and strong going down the road but when I stop and start to take off it bogs down and dies, It will start back up in 5 to 10 mins. and will run good for several days and then it will die again . I have been told that it is the 3rd cycl.

What kind of gas does a 1997 Chevy truck use?

1997 chevy c1500 WT with 4.3 . getting harder to re crank.. Only driveable with both stop revving to keep it going. And that still doesnt work well. Work ive done. New cap and rotor. Cleaned…. Exh gas.

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.

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 kind of noise does a Chevy 4.3 make?

by Contributor. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. Examples of this are staling, lurching and poor acceleration. Poor idling and loud engines usually go hand-in-hand.

What are the symptoms of a bad intake manifold gasket?

Symptoms of a Bad Intake Manifold Gasket – Chevy 4.3L 1 Engine misfires 2 Sluggish acceleration, lack of power 3 Lean or rich air to fuel ratios 4 Engine overheating 5 Low coolant light illuminating 6 Leaking coolant / dripping onto garage floor More

Can a bad fuel pump start a GM Spider?

If you need to test the ‘spider’ equipped GM pickups or SUVs, the following tutorial will help: Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L). A bad fuel pump will make your 4.3L, 5.0L, or 5.7L throttle body fuel injected pickup or SUV crank but not start. Here are some more specific symptoms:

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?

Can you test the fuel pump on a GM Truck?

And although GM did not include a Schrader valve to which you could connect a fuel pressure gauge, it can be tested with one to find out if the fuel pump is producing the correct pressure (or not).

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 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 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 is my Chevy Blazer stalling and stalling?

Check/clean EGR. This does have the newer style injection so could be fuel pump heats up and pressure drops – have to test at test port. Coil could be failing due to overheating due to ignition module never shutting off so always a low voltage to it.

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.

What causes a car to have a no start condition?

The engine pistons and valves (and all the other related components like: timing chains, etc.) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Although rare, internal engine mechanical problems can and do cause no-start conditions. Blown head gasket. Blown engine. 4.)

What was the ignition module for a 1996 GMC c2500?

1996 GMC C1500, C2500, C3500 Pick Up. 1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).

What happens when the ICM fails on a GM car?

Generally, when the ICM or the ignition coil fails, your GM car or truck will Crank but NOT START. Specifically, the ignition coil will not spark.

When did the GMC Jimmy Trailblazer come out?

Upon introduction of the 2002 Chevrolet TrailBlazer and the GMC Envoy, production continued after their successors came to the market, with the Jimmy being sold only in Canada and, in the 2005 model year, 4-door models sold to vehicle fleets. Another upscale model was the 1998 GMC Envoy.

Can a GM 4.3L Vortec engine be tested?

This isn’t possible on the GM 4.3L, 5.0L, and 5.7L Vortec engines with a ‘Spider’ fuel injector (the fuel injector is inside the intake manifold plenum and its outside electrical connector doesn’t allow for such a test).

What happens when you turn the ignition key on a car?

Turning the ignition key produces nothing. There is power to all of the dash gauges, but the starter will not engage. This only happens every fourth or fifth time you try to start it. After allowing the car to sit for a while you turn the key and it immediately starts.

How to troubleshoot a GM 4.3L no start?

Check that the 8 cylinders are getting spark with a spark tester. The distributor cap is good. The ignition coil is good. The ignition control module is good. The crankshaft position sensor is good. The distributor cap could be bad. The ignition coil to distributor cap high tension wire could be bad. The ignition coil could be bad.

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.

Is there a problem with my 4.3 Vortec engine?

If a knocking noise, piston or crankshaft related problem. Attached is a web site that you can listen to a piston slap which is a known issue for your 4.3.

Why does my 2001 S10 have a hard starting problem?

My 2001 S10 has a hard starting problem if the truck sits between 1 to 4 hours. It starts fine if left over night. Has 46,000 miles. Cranks for about ten seconds before it starts. some part of your fuel injector is leaking into the manifold. Have fuel pressure tested, have a feeling it will shoot up to the desired 60 psi then fall back now quickly.

What to do if your truck won’t start?

Fuel pump is running it’s little heart out, starter is trying its hardest, but the truck just will not fire up till it damn well feels like it. I’ve already replaced both the cam and crank sensors, new fuel pump and filter as of 3 months ago, and new wires and plugs as of 2 months ago.

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.

Which is a symptom of a fuel pump problem?

Another symptom of a problem with the fuel pump is engine performance issues. As the fuel pump is what supplies the vehicle with the fuel required for combustion to occur, any issues with it can affect the engine’s fuel supply and cause issues.

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.

Can a weak fuel pump cause a car to not start?

A weak fuel pump may still pump fuel, but the vehicle may experience difficulty starting from the lack of pressure. A weakened fuel pump can cause the vehicle to take more cranks to start than normal, and in more serious cases may even cause the vehicle to require multiple turns of the key before it will start.

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.

What happens if your car runs out of fuel?

If the supply lines break or are clogged for some reason, your car’s engine can shut off completely while running. If you are driving around without keeping an eye on your fuel gauge, there is a higher chance that your fuel will run out and you could be left stranded on the side of the road.

What causes a GM pick up to not start?

The one symptom that’s gonna’ be staring you right in the face is your GM pick up or van or SUV cranking but not starting. More specifically, you’ll see one or all of the following symptoms when the crank sensor fails: No spark from all of the Coil-On-Plug Ignition Coils.

Can a failed crank sensor cause no start?

The thing to remember about having a failed crank sensor, is that if you have spark or fuel injector pulses, the crank sensor is OK and not the cause of your No Start Condition. The crankshaft position sensor, on your 4.8L, 5.3L, 6.0L GM vehicle, is a Hall-Effect three wire crankshaft position sensor.

What happens if crankshaft sensor fails GM 4.8L?

If the crankshaft position (CKP) sensor fails, in your 4.8L, 5.3L or 6.0L GM vehicle, it’s not gonna’ start. In this article, I’ll show you how to test it using a multimeter (in Volts DC mode).

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 to do if your car wont start?

Next, read somewhere that Engine Oil Pressure sender (behind and below the distributor) since it serves and oil pressure guage sender and fuel cutoff switch in case of loss of oil pressure, replace it with new to eliminate that. No change. Next, read somewhere that bad ground wire on Thermostat housing can cause ECM issues.

What happens if there is no spark in the ignition?

The ignition system is the one responsible for creating and delivering spark. Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. Distributor cap. Crank sensor. Ignition module. Ignition coil. All of the above ignition system components can be tested. 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).

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.

Why is my Toyota Tacoma hard to start?

Q3: “ Toyota Tacoma starting problems – It’s incredibly hard to start when the outside air is hot.” A: For the hot start, hold the gas pedal to the floor while you turn the key to see if that does anything. If it helps then you may have a leaking fuel pressure regulator or fuel injector sending fuel into the intake on hot shut down.

Why is my Honda Fit hard to start?

Q4: “ Honda Fit starting problems – Today, i put the key in and it wouldn’t turn…took 35 minutes of trying (tried both keys i had for the car) before i could start it. had this happen a couple of times before but usually got it in three or four tries. i was ready to have the thing towed back to the dealership…any thoughts?”

What causes a car to have black smoke coming from the exhaust?

6 Most Common Causes Of Black Smoke From Exhaust 1. Clogged Air Filters 2. Damaged Fuel Injectors 3. Faulty MAF Sensors 4. Bad EGR Valve 5. Damaged Piston Rings 6. Engine Deposits

What causes a blown head gasket on a GM 4.3L?

You can find this tutorial in Spanish here: Cómo Probar Los Empaques De Las Cabezas (GM 4.3L, 5.0L, 5.7L) (at: autotecnico-online.com ). The most common cause of a blown head gasket is that the engine overheated because: 1) Fan clutch is not working, 2) All of the coolant leaked out of the engine and you kept driving it this way.

Why do I have black smoke coming from my tailpipe?

If there is a lack of of air coming into the engine, the fuel will be burnt partially then leads to black smoke from tailpipe. Fuel needs to be burnt fully as it will only emit CO2 and water, which do not cause black smoke. That is why the correct combination of fuel and air is so important if you want to avoid black smoke.

What does it mean when you have smoke coming from your engine?

Billowing fumes almost always mean there’s something seriously wrong with your car. But the color of that smoke might help you understand what type of repair can help fix it. Many engine problems create abnormal or excessive exhaust smoke. In your engine, fuel is burned in each cylinder, creating exhaust gases.

6 Most Common Causes Of Black Smoke From Exhaust 1. Clogged Air Filters 2. Damaged Fuel Injectors 3. Faulty MAF Sensors 4. Bad EGR Valve 5. Damaged Piston Rings 6. Engine Deposits

Where does the gas go when it comes out of the tailpipe?

Along the way, the gases travel through the catalytic converter, where any remaining fuel is converted to water to reduce emissions. Finally, the gases exit through the tailpipe. When everything’s working properly, this exhaust is colorless. But if something is amiss, you’ll see a cloud of smoke coming out of the back of your car.

What kind of engine does a 1992 GM S-10 have?

The lower steering column cover would need to come off to the access the switch. 1992 S-10 Pickup V6 4.3 4WD Vortec V6. GM Computer codes = no Got new battery installed. Truck ran fine never had problem until now truck cranks fine and strong also fuel pump starts for 2-3 seconds then turns off left for 2 days came back would not start.

Why does my truck stall when I turn the key off?

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 Chevy Blazer have no power?

No codes come up until after it happens then it comes up oxygen sensers port 1 and port 2. You can step on the gas and the engine just bogs it has absolutely no power . Put the car in neutral ( while still moving ) count to 3 and restart and have all the power you want. Tried Hi test gas , fuel additives, still happens!

Can a Vortec 4.3 crank but won’t start?

It cranks like a champ, but just doesn’t start, no check engine light on, and nothing else comes up on the good scanners either. Once it starts there is no problem, so the mechanics working on it have just been changing parts trying to guess, I guess. It has new plugs, wires, distributor cap and rotor, ICM, MAP censor and fuel injectors.

How to solve 4.3 Vortec engine, knocking or Fixya?

An expert that got 5 achievements. Re: 4.3 vortec engine , engine noise, knocking or tapping… The knocking or ticking is going to determine if it is in the top end, lifters, push-rod or rocker arm issue or the bottom end that would include pistons or bearings.

Can a GMC Jimmy start in the Cold?

I have a 1999 GMC Jimmy with a 4.3 vortex engine and it won’t start in the cold or wet, rainy weather.

What does the 4.3 Vortec engine noise mean?

4.3 vortec engine , engine noise, knocking or tapping on top of engine, not when cold , but starts noise when it heats up, and gets louder as it gets hotter and hotter!!! Sounds like noise is in the center of 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 is a typical GM starting system wiring diagram?

Click on the image here to pull up a PDF of a typical GM starting system wiring diagram. Depending on the year, model and engine of your GM vehicle, your starting system may be less complicated or use only some of the components shown here. For example, earlier anti-theft systems didn’t communicate the same way with the PCM.

Do you need a PCM for a GM car?

Depending on the year, model and engine of your GM vehicle, your starting system may be less complicated or use only some of the components shown here. For example, earlier anti-theft systems didn’t communicate the same way with the PCM. The bottom line is you MUST get the wiring diagram for your particular vehicle.

What’s the difference between no start and no crank?

It’s important to know that a no crank and a no start condition are not the same thing since this article only concentrates on testing a no start condition. In layman’s terms, a No Start Condition means that your vehicle’s starter motor is cranking the engine but the engine is not starting.

What does it mean when your car says no crank?

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. The most common problem, that causes this condition is a failed starter motor.

What kind of problems does a 1993 Jimmy have?