Thread: misfire code
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Old 10-14-2011, 07:37 AM   #4
Tech II
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Re: misfire code

Wonder if he ever got it fixed?

Doubt carbon tracking on new plugs and wires.....

Did he use A/C Delco plugs? Good wires? Good Coil?

Basically, you use a spark tester and check output at the end of #1 and #4 wires....if ok, and used a good plug(OEM), could be the injector......another possibility is a head gasket leak, usually at #1 cylinder....is he losing coolant or overheating?
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