Sierra 3500 4WD V8-6.0L VIN U (2004)
Exhaust Manifold: Specifications
Exhaust manifold bolts.
1. Tighten the exhaust manifold bolts a first pass to 15 Nm (11 ft. lbs.). Tighten the exhaust manifold bolts beginning with the center two bolts.
Alternate from side-to-side, and work toward the outside bolts.
2. Tighten the exhaust manifold bolts a final pass to 25 Nm (18 ft. lbs.). Tighten the exhaust manifold bolts beginning with the center two bolts.
Alternate from side-to-side, and work toward the outside bolts.