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 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.
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.
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 does a GMC Sierra 1500 idle like?
Today experienced a poping sound almost like a backfire from underneath. 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 are the most common GMC truck problems?
One of the most common 2007-2013 GMC and Chevy truck problems owners experience is excessive oil consumption. This problem led vehicle buyers to launch a class-action lawsuit against GM, which alleged 2010-2013 vehicles with Generation IV 5.3 Liter V8 Vortec 5300 engines were defective.
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.
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 are the most common problems with a GMC Sierra?
Another 258 people reported the second-biggest issue where heating and air conditioning temperature and air delivery mode door actuators may fail. If one or more delivery mode door actuators fail, the HVAC system may not produce correct temperatures or air delivery. The HVAC system stores fault codes, which help with diagnosis.
What causes intake manifold gaskets to wear out?
As the vehicle acquires mileage, the intake manifold gaskets may wear out and eventually leak. This can cause major performance issues, as the intake manifold gaskets seal engine vacuum and pressure.
What kind of fuel trim is a vacuum leak?
Short-term or long-term fuel trim, STFT or LTFT on a scan tool, might show something like +10% or +25% as the ECM attempts to compensate for unmetered air. P0171 and P0174 are common Fuel System Lean DTC.
Why does my Duramax have a leaking cab vent?
Closing your door (s) with windows up, might be a bit hard if you seal ’em up. They equalize the Cabin pressure. GM calls it a Valve, body pressure relief. Closing your door (s) with windows up, might be a bit hard if you seal ’em up. They equalize the Cabin pressure. GM calls it a Valve, body pressure relief.
Why are my rear cab vents leaking water?
Headliner was wet and stained in both rear corners. Bad gasket on light. Replaced with new light and that fixed that leak. I have the entire interior out of my truck to replace carpet and headliner. That’s when I noticed more water running into my truck through the rear cab vents. Crap! I removed them to inspect.
What to do about a leaking cab vent?
Enter your ride HERE to be a part of this months Ride of the Month Challenge! I thought I fixed the issue of water leaking into my cab by replacing the third brake light. Headliner was wet and stained in both rear corners. Bad gasket on light. Replaced with new light and that fixed that leak.
What does it mean when your air brake is leaking?
With the introduction of spring brakes, anti-compounding and 121 air brake systems, because a valve is leaking air out of its exhaust, does not mean the valve is at fault. If a spring brake is leaking from the the spring brake to the service brake side, that air will travel back up the service line and out the exhaust of the next valve back.
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.
Where is the vacuum hose on a GMC Truck?
Its the silver line next to the trans dipstick tube The year range is pretty non specific. If the truck has a vacuum hose to the transmission (to the vacuum modulator), the line will be a metal tube attached to the large tube that the transmission dipstick is in. It will come up and connect to a hose that will run to the base of the carburetor.
Are there any problems with the GMC Sierra?
See all problems of the 2008 GMC Sierra . There is a extremely dangerous electrics issue with my 2014 GMC Sierra 1500 all terrain. In the last 18 months my truck has locked the steering at low speed while turning 8 times. (I could have easily broken a finger a lost control of my truck) .
Is there a lack of originality in GMC trucks?
The lack of originality from both Chevy and GMC is downright laughable, and it honestly needs to change. Different stylistic decisions need to be made for each and every model from both car manufacturer. Until this is done, General Motors is going to continue to see their number of sales decrease each and every release year.
Are there any problems with GM pickup trucks?
Throughout the last decade or so, it has been quite apparent that GM trucks have been experiencing a plethora of issues when it comes to their brakes. It has been such a noted problem that, according to Car Complaints, a lot of individuals have begun to avoid pickups from General Motors entirely.
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.
The lack of originality from both Chevy and GMC is downright laughable, and it honestly needs to change. Different stylistic decisions need to be made for each and every model from both car manufacturer. Until this is done, General Motors is going to continue to see their number of sales decrease each and every release year.
Can a GM Truck shift out of Park?
Anyways, the truck runs well and starts with no problems, but if you start the car in Park, it will not shift out of park no matter what you do. The only way to fix it is if you put the key in, move it slightly forward. Once you do this, it releases the shifter and you can shift it into neutral.
Which is worse a GMC truck or a lemon?
It is worse than a lemon. It is a production GMC truck which has proven to be a miserable excuse for a truck that has caused me nothing but headaches, weeks of lost service and a serious distrust for the treachery and failures of GM in taking proper care of a customer. GM is a promise broken and a commitment never honored.
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.
Is there such a thing as a GMC Truck?
It is a production GMC truck which has proven to be a miserable excuse for a truck that has caused me nothing but headaches, weeks of lost service and a serious distrust for the treachery and failures of GM in taking proper care of a customer. GM is a promise broken and a commitment never honored. Does anyone have this truck?
Why does rear differential noise sound like a broken gear?
Having a chipped or missing high spot on a gear tooth sounds closely similar to a broken gear except that the rear differential noise only happens while accelerating or decelerating. This is because the problem is just present on one side of the offending tooth.
What kind of noise does a bad wheel bearing make?
Mike, Bad wheel bearings are usually associated with humming noises, not grinding sounds. Grinding noises usually have more to do with brake problems rather than wheel bearings. Try reading our article about brake noise to see if that is the problem you are having.
What makes a loud noise at the rear of the car?
Loud noise is coming from rear brakes Inspection Service Depending on the make and model you drive, you might have disc brakes on the front and drum brakes on the rear, or you could have four-wheel disc brakes. These are becoming more and more common today.
Why does my transmission make a loud noise?
A similar noise can come from worn bearings in your transmission or even a low transmission fluid level. It’s important to regularly check your transmission fluid level find out if you have a leak in your transmission so you can get the problem fixed before any damage occurs.
While General Motors has been making phenomenal strides with many of their vehicles, we consistently see one problem plaguing the GM line, affecting a number of models such as the Chevrolet Silverado, Chevrolet Equinox, GMC Acadia, GMC Sierra, GMC Savannah, GMC Canyon, Buck Enclave, Cadillac Escalade, and Cadillac SRX.
Can a bad ECM cause a car to be undrivable?
When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undrivable. A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem.
What was the safety rating of the 1992 GMC Sierra 3500?
34.0 gal. Below is the 1992 GMC Sierra 3500 safety rating information and crash results as reported by the National Highway Traffic Safety Administration (NHTSA). The ratings are based on a star system and can vary by style. NHTSA rates vehicles on a scale of 1 to 5 stars. NHTSA rates vehicles on a scale of 1 to 5 stars.
How to help me with a Chevy k1500 misfire?
× Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
What kind of warranty does GMC Sierra 3500 have?
Additionally, find 1992 GMC Sierra 3500 warranty and reliability information, such as limits on bumper-to-bumper coverage and major components. The monthly payment is based on the price of this vehicle assuming it is financed.
What’s the misfire code on a 1998 Vortec?
Can someone please help with what I should check next, I have a 1998 Chevy K1500 5.7 Vortec with a misfire, P0300 code for 3 months. runs a little rough, while driving under normal conditions it sputters, hesitates, and also will backfire, under heavy acceleration no noticeable skip, no sputters, and does not hesitate or backfire.
Are there any issues with GMC Sierra 2500HD?
As the GMC counterpart to the Silverado, the Sierra 2500HD shares the strengths and weaknesses of its counterpart. Owners have reported a number of issues with these models in recent years. Among them, trouble with the fuel system, minor transmission components, and body integrity stand out.
How to read Trouble Codes on 88-95 GM cars and trucks?
To read the trouble codes when your check engine light comes on on one of these old cars, you just need to put a paperclip in between two terminals, and then turn the ignition on, and the check engine light will flash the code, which you can interpret to find out what is wrong with your engine.
When does a GMC pickup truck have an issue?
Often, this takes the form of the heater turning on unexpectedly or the system blowing hot air when it should be blowing cold. The cause of this issue is a failure of air delivery or temperature mode door actuators. Fault codes can help you make sure this is the cause of the problem. This issue usually begins to occur after around 125,000 miles.
What happens when you put a GMC Sierra 1500 in drive?
I then changed the speed pickup on the transfer case, which did not help the speedometer. Now the truck will shift 1-2 manually, but when you put it in drive, it free wheels: nothing at all; no drag or anything. The computer just checks code 12. If you put it in drive, it stays in low.
How to remove distributor 88-95 GMC Chevy truck 5.0?
Removing, Rebuilding Installing Distributor 88-95 GMC Chevy truck 5.0 5.7 How to? If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
What was the problem with my 1994 GMC Sierra?
My 94 gmc sierra k1500 speedometer was acting up,brake light came on and it wouldnt shift into 3rd or od without slipping out of gear. Changed speedo sensor and cured all problems. 6 people found this helpful.
How to fix ground wire from fuel pump connection?
Same with the power wire from the relay to the fuel pump connector.You can also try sliding the wire between two fingers while slightly bending the wire to feel for a soft spot but this may not work due to the fact that it works sometimes so the bad spot isn’t real big yet. 5 people found this helpful.
What to do if your Chevy truck is running out of battery?
Remove the bolts and clean the bolt threads and the ends of the wire attachments and clean down to the frame using a wire brush. Reattach the wires to the frame. Pull out the dash’s outer trim far enough that you can reach in and pull out the old switch. Push the trim back into place. 4. Frequent Battery Rundown
Are there any electrical problems with my GMC Sierra?
Other Common Electrical System related problems of GMC Sierra Problem Category Number of Problems Electrical System problems 101 Instrument Panel problems 38 Wiring problems 27 Dash Wiring problems 12
Where are the extra wires on a 1990 GMC Truck?
Are my extra wires for the emissions control (seems to be missing). From ign coil. White wire. Chiltons says it’s for tach (which I don’t have). From the loom that goes to the a/c compressor. From near firewall, looks like it could connect to image 3, but not long enough.
Do you need a wiring diagram for your GMC?
GMC Wiring Diagrams SEARCH GMC WIRING DIAGRAMS Wiring Diagrams› GMC If you run into an electrical problem with your GMC, you may want to take a moment and check a few things out for yourself. Before you dive in with a multi-meter, you will want to obtain a free wiring diagram for your specific model.
How does the Bluetooth work on a GMC Sierra?
Secondary bluetooth phone does outgoing calls through trucks info system. Heads-up display gives double turn directions during route guidance nav. Bluetooth texting does not work. The following issues happen frequently.