Operation CHARM: Car repair manuals for everyone.

Crankcase Ventilation System Diagnosis

Results of Incorrect Operation
^ A plugged oil/air separator or hose may cause:
- Oil leaks due to high crankcase pressure.
- Sludge in engine due to inadequate scavenging of crankcase vapors.
^ A leaking oil/air separator or hose could cause oil leaks from separator or hose.