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Resources for the Repair and Maintenance of your GMC Rally Wagon 1500

GMC Rally Wagon 1500 Models:

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GMC Rally Wagon 1500 Problems

Engine -- Verified

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.

Engine -- Verified

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.

Engine -- Verified

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

Engine -- Verified

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.

Engine -- Verified

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

GMC Rally Wagon 1500 Questions and Answers

Addi, 1990 GMC Rally Wagon 1500, 5.0L V8, Staten Island, NY

How soon will I bring to the mechanic with the CodePO466.

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