1990 GMC Rally Wagon 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 GMC Rally Wagon 2500

1990 GMC Rally Wagon 2500 Problems

Distributor Shaft O-Ring Seal May Leak Oil

An oil leak may develop from the distributor o-ring seal requiring replacement of the seal.

Alternator 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.

Internal Faults in Distributor Can Cause Engine Problems

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.

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1990 GMC Rally Wagon 2500 Questions

need heat (2 answers)

I just changed our heater fan and i get air but no heat just air

Where and how to replace transmission pump seal? (1 answer)

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?

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1990 GMC Rally Wagon 2500 Reviews

Got a 1 owner 1988 5.7L GMC Van from my GF's father who passed away. 85,000 miles and would still look new if it wasn't for the paint fading. This thing runs great and everything works, I love it. Her dad maintained this thing well.

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