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

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.

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GMC Rally Wagon 3500 Questions

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?

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

vehicle suddenly lost power on accell what could cause this problem

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