Lower Intake Manifold
Apply sealer GM P/N 12345382 or equivalent to a minimum of eight threads of the lower intake manifold bolts.1.Tighten the lower intake manifold bolts (1-8) a first pass in sequence to 30 Nm (22 ft. lbs.).
2.Tighten the lower intake manifold bolts (1-8) a final pass in sequence to 40 Nm (30 ft. lbs.).