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.
Check Engine Light and Misfire Due to One or More Stuck Closed Fuel Injectors on Chevrolet G Series Van (G20)
Average mileage: 157,933 (157,933–157,933)
Engines affected: 4.3L V6, 5.7L V8
4 people reported this problem
My van runs rough when running and I need to give gas to keep it running or will stale....I have put new wires, cap, rotor, and plugs and still does the same thing, so I changed the throttle sensor and with no luck its still runs rough and stales when you let it ideal without giving gas to keep it running...please help