2011 GMC Sierra 1500 engine problems

Filed Oct 30, 2020 · Driver assistance, Engine · 65 miles · CA

My truck has problems with stability control running on the freeway in the dash came stability control services and second reduce power and the stop mu truck go slow from 65 to 20 in the middle of the freeway car behind my truck

Filed Jul 13, 2020 · Engine, Transmission · 103,000 miles · PA

Tl* the contact called on behalf of her customer who owns a 2011 gmc sierra 1500. The contact stated that while driving, the vehicle jerked and shuddered while downshifting. The stability trac and traction control warning lights were illuminated. The vehicle was taken to fiore toyota (1000 s logan blvd, hollidaysburg, pa 16648) to be diagnosed. The contact was informed that the throttle body sensor needed to be replaced. The vehicle was not repaired by the dealer. The vehicle was repaired by the contact. The manufacturer was made aware of the failure and provided a case number. The failure mileage was approximately 103,000. *ln*dt*jb consumer stated warranty is good until may 2021 or 120,291 miles.

Filed Jan 20, 2020 · Engine · 40,000 miles · SC

Truck will come up with AC turned off. The fan will just run but truck doesn't seem to start running hot. It will come on and within a few days it will go off. This has happened a minimum of three times. This has happened when just starting, or driving on a regular road.

Filed Jun 7, 2019 · Driver assistance, Engine · 106,000 miles · CA

Stabilitrak off/reduced engine power came on again after 3 unsuccessful 'fixes' at gmc dealer. I was driving 30mph over a hill when my engine completely stopped responding. Couldn't accelerate and the steering wheel locked. Went into oncoming lane but fortunately I wasn't hit. I was able to pull truck to shoulder and wait a few minutes before being able to turn on again and get it home. I have taken the truck to my local dealer every time this has happened and they only replace the throttle body sensor. It's the second time the truck has stopped responding while driving. The first time was on a highway 99 when all lights came on and truck started slowing down due to lack of engine power. I was left stranded once and had to get truck towed for a total of $430. I'm feeling unsafe in my vehicle and gm has ignored my concerns about this issue.

Filed Nov 12, 2018 · Engine · 92,000 miles · CA

I was accelerating on to the freeway when I heard a pop then the engine light came on. The vehicle starting knocking and lost power. I called onstar and they gave me the code p0300: the emissions system is not performing as expected. An issue has been detected in the exhaust emissions system which monitors and controls exhaust gases released into the air from the engine. If the vehicle is continually driven with this light on, the emission controls might not work as well, the vehicle fuel economy might not be as good, the engine might not run as smoothly and could lead to future repairs. I was towed to greiner gmc in victorville, ca. I was told a lifter failed and the cam shaft is damaged. I'm looking at $5800 in repairs.

Filed Sep 24, 2018 · Driver assistance, Engine · 60,000 miles · NJ

While driving on highway check engine light came on and lost power. Also started to hear tapping coming from engine. Had it checked by mechanic. Found code p0306 cylinder 6 misfire. Checked gm truck web site and noted service bulletin noting valve lifter failure, but no recall. Bulletin states that lifter can fail causing misfire and taping in motor. Also states during repair to check cam shaft for scoring & damage. Also checked several gm & chevy car form websites, and noted multiple complaints about same issues as well as several near accidents because of loss of power while driving. There are also several youtube videos of issues with this motor and valve lifter failure. This happens because cylinders shut down during cruising. Lifters that fail have a spring attached that fails causing the misfire and scoring to cam shaft. Gm is aware of issue but fails to issues a recall for repairs to this motor. This is a hazard and could cause an accident. Repairs should also be covered by gm as this is a common problem with this motor and they are aware of it with their in house service bulletin to service managers. This issues can happen and be covered by service warranty, but not covered when out of warranty. Bulletin also goes on to state how to write it up if covered by powertrain warranty.

Filed Jul 4, 2018 · Engine · 16,000 miles · LA

Engine problems

Filed Nov 17, 2017 · Engine, Steering · 70,000 miles · NJ

Heat sheald on exhaust manifold rusted and fell off engine resting on steering column locking steering momentarily untill I forced it to work.car was in motion when this happened.

Filed Aug 21, 2017 · Electrical, Engine · 136,000 miles · PA

Yesterday august 20, 2017 in the late afternoon while driving, my 2011 gmc sierra dead stopped without any notice almost causing an accident . I remained blocking the road until the police arrived to push my vehicle to the side of the road. The vehicle was unable to start even with a jump. The car is now at the auto repair shop and the auto mechanic stated that the hybrid system is not responding.

Filed Apr 7, 2017 · Acceleration, Engine · AR