Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2004 Chrysler Van 3.8L Misfire P0306 “Need Some Direction” › 2004 Chrysler Van 3.8L Misfire P0306 “Need Some Direction” December 28, 2019 at 7:45 am #895614 Chris GarlandParticipant Thank you for the post. I didn’t see any signs of head gasket leak. Spark plug was not overly clean and all the leak down test were good. Also no issues with overheating.