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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 210 (ENGINE CONTROL SYSTEM - 3.9L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSINTAKE MANIFOLD TUNING VALVE REPLACEMENTINSTALLATION PROCEDURE
2006 Buick Terraza CXL, 3.5 L, AWD

Installation Procedure

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Installation Procedure
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Apply Lubricate To Valve Blade
    GM1580024Courtesy of GENERAL MOTORS CORP.
  1. Apply lubricate GM P/N 1051344 (Canadian P/N 993037) to the nose of the valve blade (1).
    2. Fig 2: Installing The Intake Manifold Tuning Valve
    GM1557831Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold tuning valve.
    NOTE: Refer to Fastener Notice .
  3. Install the intake manifold tuning valve bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  4. Install the power steering pump. Refer to Power Steering Pump Replacement (LS4) or Power Steering Pump Replacement (LZ4/LZE/LZ9)
    5. Fig 3: Installing The Engine Harness Clip To The Engine Bracket
    GM1614473Courtesy of GENERAL MOTORS CORP.
  5. Install the engine harness clip to the engine bracket.
  6. Connect the intake manifold tuning valve electrical connector.
  7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.