GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the intake plenum. Refer to Intake Plenum Replacement in Engine Mechanical-2.6L and 3.2L.

  2. Object Number: 819410  Size: SH
  3. Disconnect the vacuum hose from the intake plenum switchover valve.
  4. Remove the intake plenum switchover valve bolts.
  5. Remove the intake plenum switchover valve and O-ring seal from the intake plenum.
  6. Discard the O-ring seal.

Installation Procedure


    Object Number: 819410  Size: SH

    Important: Ensure the O-ring Discard the O-ring seal is properly positioned to the switchover valve.

  1. Install the intake plenum switchover valve with O-ring seal into the intake plenum.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the intake plenum switchover valve bolts.
  4. Tighten
    Tighten the intake plenum switchover valve bolts to 8 N·m (71 lb in).

  5. Connect the vacuum hose to the intake plenum switchover valve.
  6. Install the intake plenum. Refer to Intake Plenum Replacement in Engine Mechanical-2.6L and 3.2L.