Intake Manifold Torque and Sequence
DIMENSIONSSurface Flatness (Maximum) 0.254 mm (0.010 inch)
TIGHTENING SPECIFICATIONS
Lower Intake Manifold Bolts:
First Pass 3 Nm (27 inch lbs.)
Second Pass 12 Nm (106 inch lbs.)
Final Pass 15 Nm (11 ft. lbs.)
Upper Intake Manifold Bolts and Studs:
First Pass 5 Nm (44 inch lbs.)
Final Pass 10 Nm (88 inch lbs.)
AllData Editor NOTE: Other than the two torque passes listed above, the OE Manufacturer did NOT address or supply a bolt tightening sequence for the upper Intake Manifold for this model year, or other model years where this 2 piece manifold setup is used.
A "Play It Safe" final tightening sequence would be to tighten from the center most bolts to the outer most bolts.