Chevrolet G Series Van (G20) Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Chevrolet G Series Van (G20)
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Chevrolet G Series Van (G20) ProblemsCheck Engine Light and Misfire Due to Stuck Fuel Injectors
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.
On the 4L80-E Transmission (Diesel and 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal transmission harness, and a connector pigtail available to correct this fault.
An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.
Chevrolet G Series Van (G20) Questionscruise contril inop (1 answer)
Have no current to wire to starter solonoid
Shes ran fine until then.