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.

Why does my GMC 1500 heater not come down?

I HAVE A 2000 GMC PICKUP Z71 THAT THE CONTORL FOR THE TEMPERATURE DOES NOT COME DOWN UNTIL THE TRUCK IS SHUT OFF. THE HEATER CONTOL PANEL WAS JUST CHANGED. ALSO IT HAS AC AND MANUAL CONTROLS … read more

Can a 1999 Chevy c1500 / k1500 start?

Hi, our 1999 CHEVROLET C1500/K1500 is having the same issue. After sittiing for a few hours, we have to crank it and eventually put a little gas or tarting fluid in the throttle body for our truck to start but runs and drives fine once it does start and will start right up after only sitting for about an hour or so. 205 people found this helpful.

Are there any issues with my GMC Silverado?

Another common issue with 2007-2013 Silverados and Sierras is that the fuel level sensor stops working. After approximately 120,000 miles, the fuel gauge may start misreading the fuel level or working inconsistently. You might find it always reads empty even right after you fill up the gas tank. It might also jump between full and empty.

Why is my GMC truck not getting cold?

Mine is doing the same shit yours was, had it in the shop a few days back and he said everything was normal as far as pressures and freon charge go. Mine is cool, but not as cold as it should be. If I set the knob to 65 on auto, the blower is still on high w/ the re-circulate on after I drive 25 min to work.

Where was the 1998 GMC Sierra 1500 last serviced?

Last serviced at 135,569 miles in Klamath Falls, OR on 05/31/16 • Vehicle serviced • Axle seal (s) replaced. Mileage: 138,522 miles Body Type: Pickup Color: Gray Engine: 8 Cyl 5.3 L No accident or damage reported to CARFAX. Purchased on 01/21/99 and owned in CA until 04/16/21. Driven an estimated 5,377 miles/year.

Is the a / C running on my GMC Truck?

It runs and gets somewhat cool but does not get cold. Not even cool enough in 85 degree temps to be comfortable. He checked the freon levels and they were actually high so he got it to the normal levels. No leaks. He checked the filter and it was good but went ahead and replaced it. The compressor is running.

What should the temp be in a GMC Truck?

It surely should reach 65 degrees after that time period, especially when its only 80 outside. The guy at the shop obviously didn’t take it for a ride, or even put a thermometer in the vent.

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 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.

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.

How many miles does a 1998 GMC Sierra 1500 drive?

1st owner drove an estimated 13,054 miles/year • 2nd owner drove an estimated 8,200 miles/year • 3rd owner drove an estimated 0 miles/year • 4th owner drove an estimated 0 miles/year • 5th owner drove an estimated 15,643 miles/year • 6th owner drove an estimated 0 miles/year.

Where did the 1996 GMC Sierra 1500 come from?

Mileage: 184,955 miles Body Type: Pickup Color: Red Engine: 8 Cyl 5.7 L No accident or damage reported to CARFAX. 1st owner purchased on 11/15/96 and owned in MO until 09/30/97 • 2nd owner purchased on 11/25/97 and owned in KY until 04/06/21 • 3rd owner purchased on 04/06/21 and owned in KY until .

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 GM extended parking feature shut off engine?

The GM Extended Parking feature automatically shuts off the engine when the vehicle is parked for 20 minutes without the key fob present, or after an hour when the key fob is present.

Why does my Chevy Silverado think it is in Park?

Is there any switch, relay or sensor that could cause the truck to “think” it is not in park, or the engine is already running, or whatever else might keep it from engaging the starter motor. When it decides to act right, all is will.

What to do if your GMC Sierra stall out?

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.

Which is the most popular Chevy pickup truck?

GM’s modern full-sized pickups, the Chevy Silverado and the GMC Sierra, are two of the most popular trucks on the road today. While they’re reliable trucks overall, like all vehicles, GM pickups have their share of issues. GM’s modern full-sized pickups are the Chevy Silverado and the GMC Sierra.

What causes the battery to die on a Chevy truck?

Continuous Running of Anti-Lock Brake System Pump Drivers have also reported that the anti-lock brake system pump may continue running after turning off the ignition, causing the battery to die. This typically occurs at around 140,000 miles on average and may be caused by the transistor in the ABS unit burning out.

Is the 1990 Chevy k1500 5.7 stalling?

I have a 1990 K1500 pickup with the 5.7L engine that I use as a second vehicle and for hauling. It doesn’t get driven every day and usually it’s only used for short trips but now has a stalling problem that I need to figure out.

What causes hesitation and stumbling in a 1990 Chevy c1500?

An expert that got 10 achievements. Re: 1990 chevy c1500 hesitation and stumbling during… Based on what you said, I would say the engine is starving for fuel. The computer has to be disabled to set timing – there should be a procedure for that. I would start with checking fuel pressure at the throttle body.

When did the first Chevy pickup truck come out?

It was marketed as a stronger, larger, and sleeker design in comparison to the earlier AK Series. First available on Saturday, June 28, 1947, these popular trucks were sold with various minor changes over the years in three main sizes: the half-, three-quarter-, and full ton capacities in short and long wheelbase.

Is the value of a pickup truck going down?

Cars are essential for daily living, but their value generally goes down every year. Depreciation of older pickup trucks at one time was even worse. Inexpensive, rudimentary, and tough-as-nails vehicles, they had just two functions: start every day and haul almost anything and everything.

What to do if your Chevy truck is not running?

Modern trucks, with internal computerized diagnostic systems, shut down to prevent engine damage or prevent the engine from starting if a system is not operating properly. This article highlights the most-common problems and some simple steps to get your Chevy truck up and running.

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.

Why does my Chevy truck shudder when I start up?

Allow time for the engine to warm up before quick acceleration. The shudder may also be caused by obstructions in the fuel line. Try changing the fuel filter to correct this problem. Also, confirm that the problem is not with the catalytic converter.

Can a home mechanic fix a GM convertor?

These tests as outlined in the General Motors repair manual can be performed by a competent home mechanic, but proper care must be taken to perform the tests in a safe manner. That means the drive wheels must be raised off the ground and the engine and transmission run in gear.

What causes a vacuum advance on an automatic transmission?

On an automatic transmission, a vacuum modulator leak will cause the engine to pull the transmission fluid into the combustion chamber, creating an abundance of smoke—along with transmission shifting problems. The heart of a vacuum advance is a rubber diaphragm that converts applied vacuum pressure into advanced timing.

How to test the vacuum advance in classic cars?

Once the base timing is set to the correct position, you can connect a hand-operated vacuum pump to the diaphragm, give it a few pumps, and then watch the timing mark on the crankshaft harmonic balancer advance on the timing scale with the timing light. The second way to test the vacuum advance does not require a pickup timing light.

Why is my GMC transmission stuck in 1st gear?

See GMC Transmission Rebult Kits . Clogged or faulty shift solenoids, resulting in electrical glitches or jammings. If the fault is electrical, it may trigger a check engine light. Mechanical issues and clogged solenoids will rarely result in a check engine light. Missing higher gears or transmission stuck in 1st gear.

Are there any problems with the GMC automatic transmission?

Overheating is a concern on GMC trucks that are used for towing or hauling heavy loads frequently. GMC vehicles that use a 4-speed automatic 4L60E or 4L65E transmission can develop a problem with gear shifts. This issue will manifest itself as improper gear changes that take too long to happen.

What to do with stuck a / C lines on a GM Truck?

I drilled a 1/8″ hole into the flare nut, just deep enough to touch the threads inside. I then sprayed WD-40 into the hole and around the collars. I let it soak into the threads and then tapped the nut with a wrench a few times. It unscrewed just fine. Just be careful not to pierce the threads or twist the lines.

Are there any problems with GMC 8 speed transmission?

GMC vehicles with 8-speed 8L90 and 8L45 transmission can develop intermittent problems regarding the transmission temperature. Symptoms that drivers can experience include improbable temperature readings to overheating, slipping, and harsh shifting. These issues will trigger a check engine light, so there will be a fault code stored in DTC memory.

Where is the trouble code on a GMC?

When retrieving GMC trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on.

Why is my Duramax diesel engine not working?

The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement.

Why does my GMC diesel engine not work?

American diesel fuel is thinner than its European counterpart, allowing for air pockets that cause the metal to rub against metal and create shavings. “The pump secretly deposits metal shavings and debris throughout the fuel injection system and the engine until it suddenly and catastrophically fails without warning,” the lawsuit alleges.

When did the GMC Sierra have the most problems?

The model years with the most problems reported were 2004 and 2007, with more than 60 complaints each year, followed by 2002, 2003, 2005, and 2010, with more than 40 each year. Of the 112 problems, five different complaints have been reported 90 or more times.

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.

Why does my GMC pickup truck use so much oil?

The AFM system, which disables some of the engine’s cylinders at lower RPMs to reduce fuel use, is the most common cause of this issue. While the system accomplishes this, it also leads to oil use problems. Some drivers have reported using as much as a quart of oil every 1,000 miles.

What causes oil to come out of fuel pump?

Where the fuel pump mounts to the timing case cover a gasket provides a tight seal. Although this gasket is usually reliable, engine vibration can cause the bolts to come loose. When this happens, oil can seep out around the fuel pump.

What causes a bad gas gauge on a Chevy truck?

A poor ground or loose connection to a gas gauge is just as likely to cause problems as loose or dirty battery cables assuredly will with your starting system.

Is the 1995 GMC Sierra 1500 a good truck?

The 1995 GMC Sierra 1500 is exactly the type of truck that this car manufacturer should continue to follow as the years continue to pass. There is no question that GMC has definitely done a very nice job since this spectacular model, so they definitely keep this in mind.

Are there any problems with the GMC Canyon?

The GMC Canyon has definitely been a reliable and successful series over the years, but they had a major hiccup with the 2004 release. This is because the 2004 Canyon was clearly rushed into production and came with a wide variety of problems that would never be resolved.

Are there any problems with a 7.3 liter diesel engine?

The legendary 7.3 Power Stroke Diesel engine, when properly maintained can provide years of trouble free service. However there are several common problems that can develop over time. Generally speaking these can all be resolved relatively easily. Listed below are 9 common problems of the 7.3 Liter Power Stroke Diesel engine.

What causes a 7.3 power stroke engine to die?

Keep a spare in your glove box. Under Valve Cover Harness (UVCH) Connectors are another common fault on the 7.3 Power Stroke. When these come loose or get shorted they can cause rough running conditions to the point where the truck sounds like it has 17* timing and it lopes bad and will often die and sputter.

What are the symptoms of a bad distributor?

The following are usually the most common symptoms of a BAD spark plug wires, or a BAD distributor cap and rotor on this type of GM distributor mounted ignition control module: The car (or truck, or mini-van, or van) STARTS and RUNS, but with a misfire. The check engine light is on. Lack of power. Rough idle.

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.

Is the Chevy Silverado the same as the GMC Sierra?

Mechanically and, for the most part, stylistically, these trucks are identical, but they sell under two different brand names. The Silverado is more of the standard model, while the Sierra offers more high-end interior options and has a boxier trim. Because these two trucks are the same mechanically, they typically share the same frequent problems.

Is the 350ho turn key small block crate engine?

PROPOSITION 65 WARNING. Click for more details. Our 350 HO is assembled with all-new parts and high-flow heads, giving you more power than just about any production-spec Small-Block ever installed at the factory.

What should I do if my Chevy 350 engine is not running?

Check for a fuel problem by spraying carburetor cleaner into the carburetor. Start the vehicle. If the vehicle starts, there is a fuel problem. If you have a mechanical fuel pump and the lines are not clogged, replace the mechanical pump. If you have an electric fuel pump, check the relay. If the relay is bad, replace it.

What kind of engine does a Chevy 350 have?

Fits trucks and SUV’s from 87-95. An easy installation, lots of power, street-friendly for daily driving and light towing this guy does it all! Fits full size trucks and SUV’s from 96-02, also known as a VIN “R” engine.

Where does the Chevy 350 crate engine come from?

Made in the U.S.A. Our famous “Hum Baby” Chevy 350 crate engine! She’s a smooth running machine that is suitable for a practical enthusiast looking for a higher quality engine than what GM offers. We took the “Hum Baby” engine and added more performance parts, bigger cam for that extra sound, and more performance without losing dependability!

How often does a GMC Truck die at idle?

I should add that when revving the engine in neutral at a constant 2500 rpms it will sound nice and constant and then sound like for a split second power was lost. This is so short that the rpm needle hardly drops any when it’s back up to the constant 2500 rpm. This happens every 2-3 seconds while holding the revs constant and the truck is warm.

When does the converter disengage in a car?

This allows the converter clutch to apply when hydraulic pressure is correct. The TCC is very similar to the clutch in a manual transmission. When engaged, it makes a direct physical connection between the engine and transmission. Generally, the TCC will engage at about 50 mph and disengage at about 45 mph.

When does the TCC disengage in a manual transmission?

The TCC is very similar to the clutch in a manual transmission. When engaged, it makes a direct physical connection between the engine and transmission. Generally, the TCC will engage at about 50 mph and disengage at about 45 mph. The TCC solenoid is what actually causes the TCC to engage and disengage.

What should I do if my GM converter lock up?

NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. In addition, some of the tests (test #11 and 12) require the transmission be opened and the valves are physically inspected. I do not recommend that you do this.

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.

What happens if your car jerks while driving?

You may even notice your car engine light has come on to warn you of an issue. Jerking movements while driving can be very dangerous, leading not only to vehicle damage, but also the potential for serious road accidents. Getting to the problem at the first symptoms can avoid more serious break-downs.

Why does my car Jerk when I put the throttle on?

If the fuel injector in one or more of the cylinders is dirty, it can cause the car to jerk when pressure is placed on the throttle. However, since fuel is continuously being injected into the engine, this is not the only time it might jerk. If your car is jerking due to dirty fuel injectors, you may also observe:

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 does the low fuel light come on when the tank is full?

All the sudden, the Low Fuel light comes on and the gas gauge is showing empty. I know this is wrong because I just filled up two days ago and have hardly gone anywhere.

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.

Why does my check engine light not come on?

The dome light did NOT come on when the door was open. I turned it on with the switch. The check engine light went off immediately after I turned the key to start. Yesterday it stayed on. When starting, the dome light flickered (I had turned it on manually today) , as it should.

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 Chevy Silverado not 4 wheel drive?

Over time, dirt, moisture and corrosion can affect the contacts on the bolts used to attach the wires to the frame. If you have a 2008 Chevy Silverado with 4-wheel drive problems, or a similar GMC or Chevy truck from another model year, replacing the switch will solve the issue.

What are the symptoms of a bad engine control module?

1. Check Engine Light Turns On 2. Engine Stalling or Misfiring 3. Engine Performance Issues 4. Car Not Starting 5. Poor Fuel Economy The engine control module (ECM), also commonly referred to as the engine control unit (ECU) or powertrain control module (PCM), is one of the most important components found on virtually all modern vehicles.

Why do I lose power on hills GMC Sierra 1500?

2000 gmc sierra 4.3 shows lean feul but can not find how or where to look 4 people found this helpful. my 2000 sierra starts good and ideals good the only thing that shows up on the scanner is the fuel is lean everything else shows good pls help 3 people found this helpful. Bad spark control module people…….that’s the problem….

What’s the push button on a GM 4×4?

The 4×4 system is the push button type. I had the 4×4 engaged 10 days ago and it worked fine. But, 2 days ago when I attempted to engage it due to recent Ohio road conditions, it just flashes when I push the 4hi button.

Why are the front lights on my GMC Sierra not working?

2001 dually contractor bed front lights work properly rear light , stop lights hazard light signal lights , and parking lights doesn’t work, they gone, relay and fuses, relay and bulbs are good, how to fix them? 20 people found this helpful.

What kind of brake lights work on a 1998 GMC Seirra?

1998 gmc seirra brake lights turn signals and reverse light all work. Marker lights do not work. Brake light only with with head ligh switch off. I’ve cleaned and replaced all grounds changed the whole rear harness replaced bulbs boards does anyone have any ideas?

Why does my Chevy Silverado shift from 2nd to 3rd gear?

No 1st or 4th gear, and transmission shifts from 2nd to 3rd by itself: The shift solenoid has failed, or there is a wiring problem between PCM and transmission. Replace the shift solenoid located in transmission pan, or check wiring continuity.

Why is the transmission slipping on my Chevy Silverado?

The sunshell is damaged. The transmission needs to be replaced or repaired. The 2-4 band is slipping, or servo seals are leaking. Servo seals can be replaced without pulling transmission, or the transmission must be removed for band replacement. No 1st or 4th gear, and transmission shifts from 2nd to 3rd by itself:

Why is my transmission not working on my Dodge truck?

Turn on the engine. Listen for a rattling or clunking noise when shifting gears. Because Dodge trucks are subjected to heavy loads, the transmission mounts do wear out over time. Ask a professional mechanic to install new mounts. Check for hesitation during shifting. This is caused by a faulty solenoid and pressure switch assembly.

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.

Why is my GMC transmission not working properly?

Brake light switch – If you can not move the shifter out of the park or back into park position, the problem can be due to a faulty brake light switch. Other possible cues include bad ignition interlock or faulty shifter. Valve Body – A faulty valve body can cause a number of problems on a GMC vehicle.

How to set the engine timing on a 1988 GMC Truck?

Set the adjustment on the timing light (with the small dial) according to the specifications listed. Most GMCs have a spec decal glued to the top of the fan shroud, indicating the correct number. If it requires 12 BTDC (before top dead center), dial the timing gun to 12 degrees. Have your assistant start the engine.

Where is the timing light on a GMC Truck?

Connect the timing light lead to the number 1 cylinder plug wire. The number 1 plug will be the first plug on the right side, as you are facing the engine. Some timing light leads require hooking them up to the battery–apply black to negative, and red to positive.

Why are the rear lights on my 91 k1500 not working?

I had the same problem on my 91 K1500. The most common reason rear lights of any kind will fail is rotted wires. They run through wire shroud from front to back along the inside of the frame to the left tail light. Running this way leaves them exposed to the elements.

Where are the brake lights on a C / K 1500?

There is a switch. I think on most C/K 1500/2500 it is on the brake pedal arm or the arm hits it. It is $5-$10; you might take ALL your truck data to the auto parts store, buy a new switch, then look for the same thing around the brake arm or under the hood. There’s a fuse. Find the fusebox and look for “brake”. The Owner’s Manual may have clues.

What kind of truck is the C / K series?

Formally called the Chevrolet C/K, C/K is a series of trucks manufactured by General Motors and marketed under the Chevrolet and GMC brands. The C/K line includes pickup trucks, medium-duty, and heavy trucks.

What was the problem with my GMC pickup truck?