Check Engine Light and Misfire Due to One or More Stuck Closed Fuel Injectors on GMC Savana 1500

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: 171,000 (120,000–210,000)
Engines affected: 5.0L V8, 5.7L V8
7 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002
13 people reported this problem
4 people shared problem details
2000 GMC Savana 1500- 5.0L V8210,000
Misfires runs rough, check engine light on, reads number 6 and 8 not firing changed plugs and wires problem still exist.
1998 GMC Savana 1500- 5.7L V8210,000
misfire #6 cylinder
2001 GMC Savana 1500- 5.7L V8120,000
Cylinder #2 triggered a code. engine runs a little rough. Lower gas mileage. Hoping engine cleaner additive will open up the injector. No luck so far, I'm on second tank of gas after problem occurred.
2000 GMC Savana 1500- 5.7L V8144,000
missing out.
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