Positive Crankcase Ventilation: Service and Repair

CRANKCASE EMISSION CONTROL SYSTEM





POSITIVE CRANKCASE VENTILATION VALVE

REMOVAL
1. Disconnect the ventilation hose from the Positive Crankcase Ventilation (PCV) valve. Remove the PCV valve from the rocker cover and reconnect it to the ventilation hose.
2. Run the engine at idle and put a finger on the open end of the PCV valve and make sure that intake manifold vacuum is felt.

NOTE: The plunger inside the PCV valve will move back and forth.

3. If vacuum is not felt, clean the PCV valve and ventilation hose in solvent or replace if necessary.

INSTALLATION
Install the positive crankcase ventilation valve and tighten to specified torque.

Tightening Torque
PCV valve tightening torque: 8 - 12 Nm (5.8 - 8.7 lb.ft)