GMC Rally Wagon 3500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your GMC Rally Wagon 3500

GMC Rally Wagon 3500 Problems

Check Engine Light and Misfire Due to Stuck Fuel Injectors

One or more fuel injectors may become stuck closed causing an engine misfire  and the Check Engine Light to illuminate. Our technicians tell us that this problem can be caused by some fuel additives. There are special procedures which may be able to restore the affected injector. If this fails the affected injector must be replaced.

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.

Idling Problems Due to Vacuum Leak in Throttle Body Gasket

An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.

See More Problems (9)

GMC Rally Wagon 3500 Questions

fuel pump problem (1 answer)

how do I access the fuel pump? do I need to purchase the entire assembly or just the pump and use the old attachment parts?

NEED TO KNOW OF KNOWN BULLENTINS? PROBLEMS? GOING ON A LONG TRIP. (2 answers)

SOME TIME IT HAS HESITATION? PLANNING A LONG TRIP,WOULD LIKE TO KNOW WHAT MIGHT HAPPENED,SO I CAN DEAL WITH IT?

vehicle lost power on accell (1 answer)

vehicle suddenly lost power on accell what could cause this problem

See More Questions (3)