GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 575989  Size: SH
  1. Turn OFF the ignition.
  2. Disconnect the vacuum hoses positive crankcase ventilation valve.
  3. Remove the positive crankcase ventilation valve.

Installation Procedure


    Object Number: 575989  Size: SH
  1. Install the positive crankcase ventilation valve.
  2. Connect the vacuum hoses to the positive crankcase ventilation valve.