Gmc Sierra 1500

The truck currently has 48000 miles. The 6.2L L87 engine was replaced at 17000 miles. A few weeks ago, I parked it, went to a ballgame, came back 4 hours later and started the truck. Drove it approximately 500 feet and lights started flashing on the dash. It was running rough, had loos of power, and...

6.2L Engine has well documneted problem with the valvetrane, I have had to fix it 2 times in 3 months. I have pictures and documents from servicing dealerships. Since my ownership, it has always been dealer-serviced. Unexpected catastrophic engine failure, which happened on a major interstate. GM se...

Engine Failure at 18,000. Knocking noise started immediately followed by vehicle going into low power mode. Dangerous to drive in traffic in low power mode. No other warning lamps or indications that something was wrong. Dealer inspected and found a bearing went out in the engine.

Driving on Interstate at a speed of 65, truck lost power. Check engine light and all lights on dash appeared I initially mistakenly reported the wrong mileage of 160k. My vehicle only has 135k miles on it

Driving on Interstate at a speed of 70 when truck lost power. Check engine light came on and other lights on dash came on also. 2007 with 160k miles original barely driven. This year should be a part of the Class Action Suit

At speeds of 65-75, both with the adaptive cruise control enabled and disabled, I accelerated a little bit to pick up speed and pass another vehicle. The vehicle responded initially by gaining speed, then it feels like I hit something and the front brakes lock up for 1-2 seconds and the tires start ...

At speeds of 65-75, both with the adaptive cruise control enabled and disabled, I accelerated a little bit to pick up speed and pass another vehicle. The vehicle responded initially by gaining speed, then it feels like I hit something and the front brakes lock up for 1-2 seconds and the tires start ...

Our truck had just passed 60,000 miles when the engine seized. The recall procedure was completed in January, and the engine passed the test at that time. We were also using the recommended 0W‑40 oil. Despite following all guidelines, the engine still failed. This shows that the procedure GM has o...

My engine started knocking horribly, I need to get a proper diagnosis but cannot afford to have a shop look at it. I have been building engines my entire life and am certain the rod bearings have failed. The engine has a distinct knock under acceleration, you can hear it clearly when pulling away fr...

I was driving on the highway at about 80 miles per hour and all of the sudden, a piece of the front grill detached and flew off, hitting the top of the of the roof.