Positive Crankcase Ventilation Valve: Testing and Inspection

PCV VALVE INSPECTION





1. Remove PCV valve.
- Disconnect the PCV hose from the PCV valve.
- Remove the PCV valve.
2. Install clean hose to PCV valve.





3. Inspect PCV valve operation.
- Blow air into the cylinder head side, and check that air passes through easily.

CAUTION:
- Do not suck air through the valve.
- Petroleum substances inside the valve are harmful.





- Blow air into the air intake chamber side. and check that air passes through with difficulty.
- If operation is not as specified, replace the PCV valve.
4. Remove clean hose from PCV valve.
5. Reinstall PCV valve.