2CarPros - Car Questions & Answers

1998 GMC Other Repair Question


Topics covered: Engine, Alternator, Engine performance.
Mileage: No information provided.

Asked on September 16, 2010

1998 Other GMC Models reset computer

Engine Performance problem
1998 Other GMC Models V8 Four Wheel Drive Automatic 218000 miles

1998 gmc 6.5 turbo, disconnected batt's and cleaned terminals due to alternator problem. Reconnected batt cables, had hard time staring truck, driving down the road at highway speed and all of a sudden it would go into passing gear. Come to a stop and the engine would stumble then rev up. Don't know if it's the computer trying to reset itself or there is a problem with it. No engine servce light or codes.
Avatar Asked by Roy B

Answer

Replied on November 2, 2010

whenever you disconnect the bateries, the computer has to relearn what to do. it may be doing this now so you'll have to keep your eye on it. if it continues it may be a trans problem then have a trans pro run a scan onit.

Tiny Answered by hmac300 (expert)
17,848 answers provided