While traveling on the highway the vehicle speed control will suddendly get stuck. The dealership is aware of the problem. Mr
1999 GMC Sierra acceleration complaints
Page 2 of 2: complaints 11 to 39 of 39, newest first, as owners wrote them.
Consumer states that the vehicle has a intermittent problem with the throttle locking up. Dealer and the manufacturer has been notified. Feel free to provide any further information.
While traveling on highway vehicle will acellerate suddenly. Dealership is aware of problem.
Gmc sierra has been in shop to many times to keep track of. Truck also has a problem with sticky throttle body which has been dangerous.gmc gave extended warranty in 2000 bacause of problems also issued customer appreciation certificate if I wanted to buy new gm product.service manager told me to cut my losses and but a new one.gmc will not do a thing for me. Contacted nys attn. General about problems.gmc now has their legal core calling me at home . I have asked them to buy vehicle back research the parts and assembly to protect other owners. Gmc says sorry . I asked them how they could warranty rust thru for 100,000 but could not protect ABS from corrosion, gmc response was hey you live in new york state. And they are under no financial obligation what so ever
Throttle stuck open after applying accelerator pedal, resulting in a vehicle crash. Dealer and manufacturer have been notified. Feel free to provide any further information.
While in motion, the accelerator starts to stick. Consumer has to press hard on the gas pedal to release it, causing the vehicle to lunge forward.
Throttle body is sticking, and it is hard to press on gas. Also, hard to stop.
Gas pedal will continueously get stuck when driving. Consumer has to pull it back out with both feet. Contacted dealer, and dealer was not willing to do anything.
Throttle plate sticks at idle requiring additional force to release. This caused vehicle to fail to come out of idle at red lights and intersections. Dealership charged me repeatedly for cleanings and argued with me regarding tsb's about the throttle. I was told I was not supposed to have that information and it didn't matter. I was told throttle body systems are normal maintenance and the throttle body needed replacement every 10,000 miles. The drivers seat (manual) would unexpectedly release throwing me into the steering wheel. Plastic part broke from seat track. Dealership failed to fix, damaged the seat further trying to grind on the track and hammered seat track in the closed position to force the seat from moving. Charged me for damaging the seat. Gm customer service called to argue my complaints, I was told they didn't have any control over the dealership, and if they said the seat was fixed they would back the dealership. This is going to cause me to have an accident.
Accelerator pedal sticks after coming to a stop. Consumer will then apply more pressure to pedal and vehicle will surge forward. Consumer found a tsb stating that throttle body should be replaced.
After start up vehicle it started to accelerate, throttle will stick and cause a loss of control over acceleration. Dealership has examined vehicle several times, and has failed to correct problem. Please provide any additional information / attachments.
Throtle sticks from idle, causing truck to lurch forward.
Throttle sticks when pressing down to take off. Vehicle jerks and can go faster than intended if brakes are not applied quickly enough. Dealer stated they have heard of problem, but consumer has to come up with money before they can look at vehicle. *ak
Accelerator pedal stickes in the closed position (foot off of the pedal) this was first noted around 20,000 to 24,000 miles. Dealer cleaned throttle body (around 28,000 to 30,000 miles) which corrected the problem for about 6 months. The accelerator pedal sticks about 80 to 90% of the time. The concern I have is that if I am backing up to a trailer for hook-up or backing out of a parking space, that in my efforts to release the pedal, the vehicle could lurch, resulting in property damage or bodily injury.
Throttle body sticks. It is hard to push the gas pedal to try to acclerate at a slow speed. When finally pushing pedal in throttle will snap towards the floor. Contacted dealer, and dealer has tried to fix everything. They could guess what has been causing the problem but with no success.*ak each time repair was done, it lasted only 8,000-9,000 miles. The consumer believes the problem was very serious and affects other drivers too.
Ever since consumer has owned this vehicle with 48,000 miles on it at time of purchase, throttle would stick when pushing down on accelerator pedal. This defect occurred mostly during low speeds, approximately 2 to 3 times a week. Dealership was examining wheel bearings. Dealer stated that throttle body needed to be replaced.
When turning engine off, minutes later would try to start engine, and throttle was opened. Then, tapped on gas pedal and idle will go to one RPM. Other consumer experienced sudden acceleration. Dealer said that throttle body was deffective.
When vehicle is put into gear to start accelerator pedal sticks. Dealer diagnosed probelm as carbon build up. *ak the consumer stated that the problem was not only dangerous it would get worse with time and wants the dealer to fix it as soon as possible..
Throttle body sticks while driving. Had built up dirt and varnish. This caused vehicle to lunge forward when pressing on pedal. Drivetrain makes a clunking noise due to a lack of lubrication. This can cause teeth not to mesh correctly
Accelerator pedal will stick when consumer takes foot off pedal, vehicle will keep going until consumer applies brakes. Vehicle will accelerate during this time.
Throttle body sticking. Dealer notified, and informed consumer no recalls on that problem. Feel free to provide any further details on this matter.
While stopping at a stop light and when pressing on throttle pedal to return to normal travel pedal become stuck, causing vehicle not to recive fuel. Please provide further information.
Would be driving and removing foot from gas pedal for a short while. Would then depress on gas pedal, and it made a loud metallic bang. Would sound like metal against metal. Took to dealer & mechanic lubricated driveshaft. Was working fine until leaving dealership. Have been in to dealer ten times for problem , and it's not resolved.
The rear rotors u-joint, carbon build up on throttle, replaced window motor uses 2 qts of oil every 400 to 500 miles , transmission uses 1 qt of oil every 20000 miles , air conditioner fan does not work on high I believe the throttle build up is a safety issue with the gas petal sticking. We have a lemon
When accelerating fast, must let off of throttle so transmission will shift from 1-2, and 3-4 gears. All fluid and filter were changed, problem not fixed.
While pulling inside of the driveway and coasting along, engine just roared up and vehicle accelerated. Vehicle jumped over landscape timbers and hit basement wall. Also, front brakes locked up, but back wheels were still moving and in motion.
While backing out of garage, truck went full throttle without foot being on the accelerator pedal. Driver had to stand on brake and turn ignition off to get truck to stop. Truck was taken to the dealership. Throttle body was replaced due to sticking. *ak
When attempting to pass another vehicle on an incline at speeds of 55mph to 65mph the transmission shifts into second gear and revs the engine up to 4500 rpms and doesn't increase the speed because it is running at its peak speed in second gear causing me to have to let up on the accelerator and try to get back behind the vehicle I was trying to pass.this same downshifting also occurs when using the cruise control.the dealer did not want to test drive the vehicle on a similarly inclined road to duplicate the problem because he didn't have another vehicle like mine to compare it to.the defect in this transmission could easily put me in a head accident situation and needs to be addressed immediately.
While driving vehicle would start to accelerate, vehicle would pull to the left or sometimes to the right. Would happen all time while driving. When the brakes were applied, they would not pull either way. Took to dealership & mechanic could not locate cause of problem. The gmc representative took vehicle for a test drive & declared it was okay to drive.
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