1991 GMC 1500 Pickup Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 GMC 1500 Pickup
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
1991 GMC 1500 Pickup ProblemsDriveability Problems Due to Internal Distributor Fault
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.
The front or rear differential may develop an abnormal noise due to worn bearings or another internal fault. Our technicians tell us that a complete overhaul of the affected differential is commonly necessary to correct this condition.
1991 GMC 1500 Pickup QuestionsHelp can't figure out why I lose power when use my lights or turn signals (1 answer)
My gauges are not reading right and it loses power if I run any accessories. Its not the alternator or fuses.
if I put a bigger fuss it will start like it takes a 10 amp I have to put in a 30 amp to start keeps turning over but don't start