Positive Crankcase Ventilation: Testing and Inspection

PCV VALVE INSPECTION
1. REMOVE 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 intake manifold 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





PCV HOSES AND CONNECTIONS INSPECTION
VISUALLY INSPECT HOSES AND CONNECTIONS
- Check for cracks, leaks or damage.