Lower Intake Manifold Torque and Sequence

Use Teflon sealer to seal the four bolts, numbers 9, 11, 13, and 15 that are exposed to the crankcase.

Apply threadlocker GM P/N 12345493 to the threads of the bolts and the studs that are not numbered 9, 11, 13, or 15.

Tighten the intake manifold bolts/studs, in sequence, to 42 Nm (31 ft. lbs.).