Table 1 shows seven common power train related problems of the 1998 GMC Sierra. The number one most common problem is related to the automatic transmission (six problems). The second most common problem is related to the power train (four problems).
Problems with transmission shifting incorrectly. While driving, the transmission became hot, and disengaged from overdrive to lock up mode, and blew 2 quarts of automatic transmission fluid out the vents Read details...
The contact owns a 1998 GMC Sierra. The contact stated there was a transmission leak. The failure was not diagnosed nor was the vehicle repaired. The manufacturer was contacted about the failure. The failure mileage and VIN were unavailable. Read details...
Front end shook while braking. Braking distance seemed normal. Vehicle was taken to dealer numerous times, and dealer replaced and turned front rotors four times. In may 2003, mechanic noticed rear axle seal was leaking grease onto rear brake drums, causing rear brakes to fail, seal was replaced. Read details...