Positive Crankcase Ventilation: Testing and Inspection
PCV VALVE TESTING1. Verify that the engine coolant temperature is below 20°C (68°F).
2. Start the engine and let it idle.
3. Disconnect the PCV valve with the ventilation hose from the cylinder head cover.
4. Block the PCV valve opening.
5. Verify that vacuum is felt.
Purge Control Solenoid Valve:
6. Remove the PCV valve.
7. Blow through the valve from port (A) and verify that air comes out of port (A).
8. Blow through the valve from port (B) and verify that no air comes out of port (A).
9. Replace the PCV valve if not as specified.