Table 1 shows 22 common power train related problems of the 2003 GMC Envoy. The number one most common problem is related to the transfer case (14 problems). The second most common problem is related to the power train (eight problems).
Bought my GMC in April of this year 2007. Never had to use the 4x4. Unfortunately with 9 inches of snow tried the 4x4 for the first time and it did not work. Took it to the dealer and they said it was the transfer case was not working and needed to be replaced a 600 estimated service. Read details...
Shift cable broke between the shifter and the transmission while shifting from drive to reverse to park on a street. If this had happen while shifting down gear to lower speed while driving down a hill, a loss of control of the vehicle would have happen that would have led to a crash with extreme Read details...
Transmission line mounted too close to catalytic converter resulting in rubbing action that resulted in a hole in the transmission line spraying fluid on hot exhaust parts. Had to pay to have hose replaced. Read details...