Check Engine Light and Misfire Due to One or More Stuck Closed Fuel Injectors on GMC Savana 2500

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.

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Average mileage: 124,916 (78,000–193,011)
Engines affected: 5.3L V8, 5.7L V8, 6.0L V8
8 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003
11 people reported this problem
1 person shared problem details
2003 GMC Savana 2500- 5.3L V878,000
Same as the others. Haven't found the solution yet.
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