1990 Chevrolet G Series Van (G20) Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Chevrolet G Series Van (G20)
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1990 Chevrolet G Series Van (G20) ProblemsFlush brake fluid every 60,000 miles
An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.
1990 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...
While trying to replace my thermostat, I tried to remove the intake manifold and one of the bolts broke off. Now I must figure out how to remove this bolt without damaging my intake manifold.