Table 1 shows four common power train related problems of the 1998 GMC C1500. The number one most common problem is related to the differential unit (two problems). The second most common problem is related to the automatic transmission cooler (one problem).
| Problem Category | Number of Problems |
|---|---|
| Differential Unit problems | |
| Automatic Transmission Cooler problems | |
| Transmission Failure problems | |
| Power Train problems |
1998 extended cab GMC sierra 1/2 ton. Rear differential exploded at 60,000 miles. Transmission was rebuilt and now it is acting up again at 80,000 miles. This truck has never been driven by anyone other than myself. Read details...
Events leading up to the failure are unknnow, at no time was adverse stress or strain placed on this vehicle. The problems began in November 2003 when I lost first gear in my automatic transmission. I dropped the pan to replace the filter and fluid, there were metal roller bearings and metal debree Read details...
My transmission has failed 3 times, each time losing reverse, 2nd and 4th. The first time between 40k -50k the second time about 65k and the third at about 95k miles. I rarely pull heavy loads in this truck. Read details...