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Code P0306

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Anyone ever get a check engine light with the Code P0306?  OBD scan showed Cylinder 6 Misfire Detected. I took it into the dealer and I lost compression in one cylinder and the head had to be replaced. The part has been on national backorder for months.  It's finally in the shop getting a new head and I was told it's a problem with some of the JK's.  I haven't found anyone with a 2015 like mine that has had that issue.  


Curious if anyone else with a JK 2014 and up ever had this problem.  It's being fixed under warranty!! 

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