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Old February 17th, 2008, 21:57
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XJ01-08 XJ01-08 is offline
NAXJA Member
Join Date: Oct 2006
Location: Northwest Ohio
Posts: 223
Re: 0331 head swap, mpg change?

Originally Posted by CheapXJ
just a thought here...

recheck the torque on your intake/exhaust manifold bolts.

EVERY time I've had them off, I've ALWAYS had to retorque them a week later.

could just be a simple vacuum leak.
Knew i forgot to check something
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