Positive Crankcase Ventilation: Service and Repair

Positive Crankcase Ventilation Valve.:

An engine which is operated without any crankcase ventilation can be damaged. Therefore, it is important to replace the PCV valve when the valve fails a diagnostic check or does not rattle. Inspect the hoses and clamps replace if they are deteriorated.


Results of Incorrect Operation

A plugged PCV valve or hose may cause:

^ Oil leaks
^ Sludge in engine

A leaking/faulty valve or hose would cause:

^ Rough idle
^ Stalling
^ High idle speed
^ PCM Codes