Chevrolet G Series Van (G20) Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Chevrolet G Series Van (G20)
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Chevrolet G Series Van (G20) ProblemsIntake Manifold Gaskets May Leak Coolant or Engine Oil
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.
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.
Chevrolet G Series Van (G20) QuestionsWhat are the shift points in MPH for the auto transmission, ie. 1st to 2nd MPH? (1 answer)
I recently had the automatic transmission rebuilt. The engine revs and the transmission does not shift out of 1st to 2nd until 20 MPH. The tech says this is about correct. I sense that the engine is reving too much in all the gears when shifting up. What are the approximate proper shift poin...
There is a 4 switch panel on the ceiling just to the rear of the front seats. It has the word Colemen, in red, that is back lit. The light behind it NEVER. SHUTS. OFF. Van off - light is on. Key out - light is on. Doors shut - light is on. 24 hourse a day - light is on.The switches on the panel ...