GMC Sierra 1500 owners have reported 1,479 engine and engine cooling related problems since 1996. Table 1 shows the 36 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's engine and engine cooling (1,257 problems). The second most common problem is related to the vehicle's radiator (34 problems). For details of each of the problem category, use the links in the table.
Radiator is leaking where plastic meets metal. Leaking coolant at upper corner driver side. This is crazy for a 70k truck. It is a known problem. Dealer refused to submit a claim to gm. I am seeing people get theses replaced. It has been an issue since coolant control valve was replaced. Read details...
The contact owns a 2016 GMC Sierra 1500. The contact stated while the vehicle was parked, the contact became aware that the radiator was leaking fluid. There was no warning light illuminated. A dealer was contacted. Read details...
The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving approximately 70 mph, the vehicle started losing automotive power and stalled. The contact frantically maneuvered the vehicle across three lanes of highway traffic to get to the right shoulder and park the vehicle. Read details...
Engine burning oil and blowing white smoke out tail pipes. Have to add oil every 1500 miles or sooner if towing. Has been an issue since first oil change. Vehicle is now at 88057 miles Read details...
My 2020 5. 3 l GMC at4 is experiencing loss of power with bucking & stalling. Cylinders are not activating when called check engine light is flashing, it starts rough and makes numerous noises at various speeds, as well as at idle. So I brought my vehicle to my local auto repair shop. Read details...