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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.6L & 3.2L - Introduction >> Repair Instructions >> Intake Plenum Switchover Valve Replacement >> Installation Procedure
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Installation Procedure

    IMPORTANT: Ensure the O-ring Discard the O-ring seal is properly positioned to the switchover valve.
    Fig 1: Identifying Intake Plenum Switchover Valve Bolts
    GM819410Courtesy of GENERAL MOTORS CORP.
  1. Install the intake plenum switchover valve with O-ring seal into the intake plenum.
  2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the intake plenum switchover valve bolts.

    Tighten:  Tighten the intake plenum switchover valve bolts to 8 N.m (71 lb in).

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