GM Service Manual Online
For 1990-2009 cars only

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.