Table 1 shows 13 common power train related problems of the 1997 GMC Sierra. The number one most common problem is related to the automatic transmission (ten problems). The second most common problem is related to the transmission failure (four problems).
After driving for about 1 hour on the highway, we exited and came to a stoplight that is when the transmission started shifting hard from first to second gear. When I got home I went on-line and that is when I realized that I am not the only 1997 GMC Sierra owner that has this very same problem, Read details...
Early transmission failure (code 1870). Read details...
While driving about 20 mph consumer heard a noise and vehicle slowed down, transmission had gone out. Consumer states while driving there was a nosie and vehicle would not shift into 2nd, 4th, or reverse and had no compression braking on a hill . Read details...