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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> HVAC Module Replacement - Auxiliary >> Installation Procedure

Installation 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. Install new HVAC module assembly to body seals.
    2. Fig 1: View Of HVAC Module Assembly
    GM882525Courtesy of GENERAL MOTORS CORP.
  2. Install the HVAC module assembly to the vehicle.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the HVAC module assembly bolts and the nut.

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

  4. Install the left PSD module to the mounting bracket.
  5. Connect the auxiliary temperature actuator electrical connector.
  6. Connect the electrical connector to the auxiliary blower motor resistor.
  7. Connect the auxiliary blower motor electrical connector.
    8. Fig 2: View Of A/C Outlet Pillar Duct
    GM1548553Courtesy of GENERAL MOTORS CORP.
  8. Install the auxiliary A/C outlet duct (2).
  9. Install the auxiliary A/C outlet duct bolts (1).

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

    10. Fig 3: Locating A/C Outlet Pillar Duct
    GM1548551Courtesy of GENERAL MOTORS CORP.
  10. Install the auxiliary A/C outlet pillar duct (2).
  11. Install the auxiliary A/C outlet pillar duct bolts (1).

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

  12. Raise and suitably support the vehicle.
    13. Fig 4: Removing/Installing Auxiliary Heater Inlet/Outlet hoses
    GM1548579Courtesy of GENERAL MOTORS CORP.
  13. Connect the auxiliary heater hoses (2) to the heater core pipes.
  14. Remove the cap or tape from the A/C lines.
  15. Install the new sealing washers onto the A/C line. Refer to Sealing Washer Replacement .
  16. Install the auxiliary A/C line (1) block fitting bolt.

    Tighten:  Tighten the bolt to 20 N.m (15 lb ft).

  17. Install the level ride air compressor. Refer to Air Compressor Replacement in Automatic Level Control.
  18. Lower the vehicle.
  19. Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) in Engine Cooling.
  20. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  21. Leak test the fittings of the component using J 39400-A  .
  22. Install the left rear quarter trim panel.
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