04 6.0 V8 misfire

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Thread: 04 6.0 V8 misfire

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    04 6.0 V8 misfire

    Hi, DaveC here, working on a misfire problem on a 2004 G-van with a 6.0 V8. Tech2 shows muliple misfires on #3 cyl. I have switched the coils, plugs, and wires to no avail. Also pulled the wire harness for that cylinder bank, no obvious problems, checked with DMM for continuity, nothing. We have 2 other vans with similar problems. I figure it must be a wiring issue, but where to go from here. Thanks, DaveC

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    2.8 Liter Turbocharged V6 dr.gizmo's Avatar
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    Jun 2006
    Chicago suburbs
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    Re: 04 6.0 V8 misfire

    I would test the injectors with a flow test, and if that was OK I would perform a running compression test.
    30 Year Gm Dealer Tech.
    GM World Class Tech with 9 certs.
    ASE Master with L1; 12 certs. total

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