P0304 again question again for noob
12-23-2014 | 10:00 PM
#16
CF Veteran
Joined: Jul 2011
Posts: 2,164
Likes: 1
From: Warren, Pa
Year: 97
Model: Cherokee
Engine: 4.0L
This might be off base but check the head casting number. The stamp is on the drivers side, top of the head in between the exhaust hookups for three and four. You might have to pull out the silver heat shield. Make sure it's a 0630 head casting. If it's 0331 that could be your problem. The 331's are prone to a crack in between 3 and 4.
Just a thought.
Just a thought.
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