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 Injectorson GMC Savana 3500
Average mileage : 125,679 (125,679–125,679)
Engine Affected: 5.7L V8
8 people reported this problem
0 people shared problem details
I lend my uncle my truck and he fill it up with gas, after that it started driving really bad....
The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engin...
replaced pump 1 week ago, van died going down high way, pulled fuel filter, fuel from both ends...
Do you have instructions for replacing fuel injectors?
The fuel pump may fail causing the engine to stall and not restart.