My 04 Chevy Silverado 1500 is giving me random cylinder misfire code, and system running lean code, changed plugs and wires, still running rough, wondering if maybe its some sort of fuel issue

Asked by Jan 06, 2014 at 04:31 PM about the 2004 Chevrolet Silverado 1500 Ext Cab Long Bed 4WD

Question type: Maintenance & Repair

Have had several experienced
mechanics baffled by problem

1 Answer

19,915

A lean code is set by low fuel pressure or a vacuum leak. Have your fuel pressure checked and check for vacuum leaks around the intake on the engine.

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