P0307 I know as a # 7 cyl. missfire. Took the vehicle to the dealer and was told that I have a crack head. Can that be so?
Jan 14, 2008 at 11:09 PM
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OLDTECH2
AUTOMOTIVE REPAIR CONTRIBUTOR
64 POSTS
It's posssible the head is cracked, but you should have other problems with it.
My Durango has fouled a plug periodically with carbon and set a similar code. It's just a matter of clearing the carbon and it runs fine.