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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Temperature Door Replacement - Left Side >> Installation Procedure

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 Left Temperature Door & HVAC Module Chamber Plate (Visteon)
    GM826795Courtesy of GENERAL MOTORS CORP.
  1. Install the left temperature door (2) to the lower HVAC module case (3).
  2. Install the HVAC module chamber plate (1) to the lower HVAC module case (3).
  3. Install the upper HVAC module case (1) to the lower HVAC module case (2).
    4. 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.
  4. Install the screws to the HVAC module assembly.

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

    5. Fig 2: Upper HVAC Module Case And Lower HVAC Module Case
    GM826698Courtesy of GENERAL MOTORS CORP.
  5. Install the wiring harness to the HVAC module.
  6. Install the lower recirculation housing (1) to the HVAC module assembly (2).
    7. Fig 3: View Of Upper And Lower Recirculation Housing
    GM826723Courtesy of GENERAL MOTORS CORP.
  7. Install the screws to the lower recirculation housing (1).

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

  8. Install the upper recirculation housing (1) to the HVAC module assembly (2).
    9. Fig 4: View Of Upper Recirculation Housing And HVAC Module Assembly
    GM826727Courtesy of GENERAL MOTORS CORP.
  9. Install the screws to the upper recirculation housing (1).

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

    10. Fig 5: View Of Air Distribution Housing (Visteon)
    GM826798Courtesy of GENERAL MOTORS CORP.
  10. Install the air distribution housing (1) to the HVAC module assembly (2).
  11. Install the screws to the air distribution housing (1).

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

  12. Install the wiring harness to the air distribution housing (1).
  13. Install the mode actuator (4) to the HVAC module assembly (1).
  14. Install the screws to the mode actuator (4).

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

    15. Fig 6: View Of Mode Actuator
    GM826791Courtesy of GENERAL MOTORS CORP.
  15. Connect the electrical connector (3) to the mode actuator (4).
  16. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement .
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