Colorado 4WD L5-3.7L (2007)
5. Remove the AIR check valve studs (3).
6. Remove the AIR check valve (2) and gasket (1). Discard the gasket.
Installation Procedure
1. Place a NEW AIR check valve gasket (1) between the engine and the valve.
2. Position the AIR check valve (2) to the engine.
Notice: Refer to Fastener Notice.
3. Install the AIR check valve studs (3).
Tighten to studs to 25 N.m (18 lb ft).