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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (HVAC - AUTOMATIC)REPAIR INSTRUCTIONSMODE ACTUATOR REPLACEMENTINSTALLATION PROCEDURE
2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Mode Actuator
    GM826791Courtesy of GENERAL MOTORS CORP.
  1. Install the cam (2) to the HVAC module assembly (1).
  2. Install the mode actuator (4) to the HVAC module assembly (1).
    3. NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  3. Install the screws to the mode actuator (4).

    Tighten:  Tighten the screws to 2 N.m (18 lb in).

  4. Connect the electrical connector (3) to the mode actuator (4).
    5. Fig 2: View Of Floor Air Outlet Duct
    GM810840Courtesy of GENERAL MOTORS CORP.
  5. Install the left floor air outlet duct (3) to the HVAC module assembly (1).
  6. Install the push pin (5) to the HVAC module assembly (1).
  7. Reprogram the Right air temperature actuator. Refer to Re-Calibrating Actuators .
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.