GM Service Manual Online
For 1990-2009 cars only

Crankcase Ventilation System Inspection for Oldsmobile Intrigue 1998

Removal Procedure

  1. Remove the injector sight shield from the fuel rail and intake. Refer to Fuel injection sight shield in engine mechanical.

  2. Object Number: 12315  Size: MH
  3. Remove the MAP sensor (1).
  4. Use a 16 mm socket to press the access cover (2) down and rotate 1/4 turn counterclockwise.
  5. Remove the access cover.
  6. Remove the PCV valve (3) and the O-ring (4) from the intake manifold.

Installation Procedure


    Object Number: 12315  Size: MH
  1. Install the crankcase ventilation valve; replace the O-ring if necessary.
  2. Install the access cover.
  3. Install the MAP sensor.
  4. Install the sight shield. Refer to Fuel injection sight shield in engine mechanical.