New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.
Cylinder head bolts
First pass Tighten to 50 Nm (37 ft. Lbs.)
Second pass Loosen bolts one full turn
Third pass Tighten to 30 Nm (22 ft. Lbs.)
Fourth pass Tighten 90
Final pass Tighten 90
this is for 3.0 vin code U since you did not give us the engine
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Tuesday, December 25th, 2012 AT 11:32 PM