CEL and rough idle. Code says Coil "D" Help - Jeep Commander Forums: Jeep Commander Forum
Regular Service / Maintenance This section contains discussion about regular service and maintenance (upkeep) of your Jeep Commander

 
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post #1 of 3 (permalink) Old 06-11-2013, 07:17 AM Thread Starter
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CEL and rough idle. Code says Coil "D" Help

Hello everyone. So far my 08 Hemi Commender has been great. Just got my first engine light last week(62K miles) and it seems simple. Replace a coil pack. Problem is, which one? The code has been checked twice and its reading misfire on coil "D". Is that the 3 cyc due to firing orfer or the 4 cyc? Thanks for any help someone can provide. I tried a search and still have not find my answer.

Mike
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post #2 of 3 (permalink) Old 06-18-2013, 06:49 AM Thread Starter
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Well i started changing out the #3 coil and swap with #1, process of elimination, and swap the #4 with #2 coil. Found the wire harness connector just a little loose on #3. Now, no light, no hesitation, we are all good. Future reference, when using code reader from Advance, a D coil is the 4th coil in the firing order.

Mike
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post #3 of 3 (permalink) Old 06-18-2013, 07:23 PM
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Happy to hear it was an easy fix .

Thanks for the info !
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