Envoy 4WD V8-5.3L VIN M (2005)
Positive Crankcase Ventilation: Service and Repair
Crankcase Ventilation Hoses/Pipes Replacement
Removal Procedure
1. Remove the positive crankcase ventilation (PCV) foul air hose from the intake manifold and valve rocker arm cover.
2. Remove the air cleaner resonator outlet duct.
3. Remove the PCV fresh air hose (2) from the valve rocker arm cover (1).
Installation Procedure