gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Positive Crankcase Ventilation Valve|Locations|Page 4898 > < Positive Crankcase Ventilation Valve|Locations
Page 1
background image

Positive Crankcase Ventilation Valve: Service and Repair

Removal Procedure

1. Disconnect the Positive Crankcase Ventilation (PVC) valve hose assembly from the intake manifold.
2. Disconnect the PCV valve hose from the valve rocker arm cover.

3. Turn and remove the PCV valve cover from the upper intake manifold.
4. Remove and discard the seal (O-ring).

Installation Procedure

1. Install the PCV valve cover using the following procedure:

1.1.

Install a NEW seal (O-ring) on the PCV valve cover.

Positive Crankcase Ventilation Valve|Locations|Page 4898 > < Positive Crankcase Ventilation Valve|Locations