2004 Tj

2004 JEEP WRANGLER TJ
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ALLEN THOMAS
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  • 1 POST
number 4 cyclinder not firing code...changed spark plug, coil pack and injector....what next????? Still running rough..
Jul 15, 2011 at 7:31 PM
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CARADIODOC
  • ✓ASE Certified Mechanic
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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.
Jul 15, 2011 at 7:54 PM
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