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 Gasket 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.
A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.
Chevrolet G Series Van (G20) Questionsengine stall (1 answer)
van will not idle without pumping the pedal,,,will stall trying to go from park to any gear. This problem has drained the battery...i replaced the fuel filter, fuel pressure regulator, map sensor, throttle position sensor, vaccum lines, battery and alternator,, im thinking it may be an electrical...
Was slipping going n 1st but I'd let my food off the gas when I hit 20 25 n it would shift the one day I hit the breaks really hard n now can't get it out of 1st gear n my having some electrical problem speed themter ain't working head light dem out
Transmission was slipping going in to1st gear but would left food off gas then it would shift I hit my breaks really hard one day n the the van wouldn't shift out of 1st gear