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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Engine Controls - 3.9L - Introduction (2 Of 2)) >> Repair Instructions >> Intake Manifold Tuning Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the intake manifold cover. Refer to INTAKE MANIFOLD COVER REPLACEMENT .
  2. Fig 1: Identifying Engine Wiring Harness Electrical Connectors
    GM1675736Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the engine harness electrical connector (1) from the intake manifold tuning valve.
  4. Remove power steering pump. Refer to POWER STEERING PUMP REPLACEMENT .
  5. Fig 2: Removing/Installing Intake Manifold Tuning Valve Bolts
    GM1557831Courtesy of GENERAL MOTORS CORP.
  6. Remove the intake manifold tuning valve bolts.
  7. Remove the intake manifold tuning valve.