K 2500 Suburban 4WD V8-6.0L VIN U (2001)
1. Install the check valve onto the AIR pipe.
Tighten
Tighten the check valve to 23 N.m (17 lb ft).
2. Connect the right AIR pipe to the exhaust manifold.
Tighten
Tighten the AIR pipe to the exhaust manifold to 20 N.m (15 lb ft).
3. Install the hose and the clamp to the check valve.
4. Test the AIR system for proper operation.
