2004 Tj

ALLEN THOMAS

MEMBER
2004 JEEP WRANGLER TJ

Number 4 cyclinder not firing code. Changed spark plug, coil pack and injector. What next? Still running rough.

Friday, July 15th, 2011 AT 7:31 PM

1 Reply

CARADIODOC

MECHANIC
33,871 POSTS

Switch injector with one from a different cylinder to see if the code changes to that other cylinder. Chrysler has extremely little trouble with injectors, but if you already changed the ignition parts, that just leaves fuel and compression.

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