Thread: Misfire?
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Old Aug 7, 2022 | 12:04 PM
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GraphiteGhost
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Joined: Jul 2009
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From: Central South Carolina
Default Re: Misfire?

Originally Posted by bc75
I changed all of them been running great. They were cracked on the back side.


GREAT to hear, am guessing that fixed all the misfire issues? A footnote cracked coils can be a he11acious thing to troubleshoot (as you know) because when one coil jumps, another could be close to 'jumping' at the same time. Your solution eliminates constantly opening up the engine cover for another 'jumping spark' issue in one step. I had two open coils on a 3.8L Babystar in my 89 Park Avenue. A little history, there were three coil packs firing the 6 cylinders and two of them output coils were 'open' internally. Under heavy loads there was a bucking bronco (that was) certified 'misfires'. Same motor in the 89 Le Sabre and those coils were 32 bucks each (the 'Park Avenue' coils were 138 bucks each and had a different part number, crooks I say!!!). Let us know if any more codes, OK? Enjoy!


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