1991 GMC Rally Wagon 3500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 GMC Rally Wagon 3500

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1991 GMC Rally Wagon 3500 Problems

Driveability 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.

Flush brake fluid every 60,000 miles

Our technicians recommend flushing the brake fluid every 60,000 miles.  Brake fluid that is dirty may cause problems in the brake system.

Service transmission every 30,000 miles

Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order. As for the 4L80-E Transmission (Diesel adn 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal  transmission harness, and a connector pigtail available to correct this fault.

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1991 GMC Rally Wagon 3500 Questions

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?

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