GM Service Manual Online
For 1990-2009 cars only

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.