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
Advertisement
OLDTECH2
CAR 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.
Jan 16, 2008 at 8:32 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.