1991 Chevrolet G Series Van (G30) Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Chevrolet G Series Van (G30)

1991 Chevrolet G Series Van (G30) 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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1991 Chevrolet G Series Van (G30) Questions

It is a problem getting the 4wd to work, it just slips out of position.

I had to by pass valve cause no fluid went to rear brakes

Carpet cleaning van. Cleaning unit is van powered by a driveshaft engaged with an electric clutch. Van drives fine with no temperature issue.
When I engage the system it will slowly go to overheat. When the system is engaged the RPMS are ramped up slightly, to about 1800.
Flushed system. Repl...

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1991 Chevrolet G Series Van (G30) Recalls

SEAT BACK OF THE REAR BENCH SEAT MAY BREAK AWAY FROM THE SEAT CUSHION IN AN ACCIDENT.

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