1990 GMC Rally Wagon 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 GMC Rally Wagon 2500
Verified by mechanics, reported by drivers like you
1990 GMC Rally Wagon 2500 ProblemsDistributor Shaft O-Ring Seal May Leak OilAlternator May Fail and Cause Noise and Dead Battery
The alternator may fail causing the battery to go dead. The charge light on the dash may or may not illuminate. The alternator may also develop an abnormal noise. A failed alternator will require replacement.
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.
1990 GMC Rally Wagon 2500 Questionsneed heat (2 answers)
I just changed our heater fan and i get air but no heat just air
I actually have a 1984 GMC Rally STX, but I figure the vehicle and years are close enough. Where can I purchase a used/new pump seal for my Turbo 700R4 transmission?