Table 1 shows nine common engine and engine cooling related problems of the 2018 GMC Sierra 1500. The number one most common problem is related to the engine and engine cooling (44 problems). The second most common problem is related to the radiator (six problems).
I have 125,000 miles on my truck. I was traveling with my grandkids in the back seat. We were going through a four way stop. My truck started tapping like a lifter issue. The next thing I know is the truck engine light started flashing and car started to shake. Read details...
47,012 miles radiator failure, leaking badly. Gm denied repair under warranty Read details...
The speed of the truck will not increase. The rpms goes really high and the truck will not move into the next gear. The rear end of truck vibrates. I took this to the dealer and was told it is the transmission fluid is faulty. The check engine light does come on. Read details...