Car Problem Reports

GMC 1500 Pickup Check Engine Light and Misfire Due to Stuck Fuel Injectors

GMC 1500 Pickup Problem
9 Reports
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Model Years Affected: 1996, 1997, 1998, 1999

Engines Affected: 4.3L V6, 5.0L V8, 5.7L V8

Average Mileage: 175,630 mi (130,000 mi - 280,151 mi)


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.

  • Visitor, , 5.7L V8, 280,151 mi

    p0304 code,wont hold fuel pressure when fuel pump is also has bad cat codes

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  • Visitor, , 4.3L V6, 140,000 mi

    when driving there is a studder when accelerating,also the o2 sensors are needed,and my check engine light is on

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  • PRESTONFITZ, , 5.7L V8, 130,000 mi

    I have seen this happen on about a dozen occasions, it is a definite problem with this design of fuel injection, but they do sell an upgrade design as a replacement, which is very nice.

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