GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2006 🢒 VUE - FWD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 HVAC Module Assembly Replacement

Tools Required

    • J 39400-A Halogen Leak Detector
    • SA9111E Hose Clamp Pliers

Removal Procedure
  1. Disable the frontal and curtain air bags. Refer to the following procedures:
    2. •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Drain the engine coolant. Refer to Cooling System Draining and Filling .

    4. Object Number: 1506428 Size: SH
  4. Remove the evaporator outlet hose and liquid line nut from the thermal expansion valve (TXV).
  5. Remove the evaporator outlet hose from the TXV.
  6. Remove and discard the sealing washer from the evaporator outlet hose. Refer to Sealing Washer Replacement .

    7. Object Number: 1506429 Size: SH
  7. Remove the evaporator outlet hose and liquid line from the TXV.
  8. Remove and discard the sealing washer from the liquid line. Refer to Sealing Washer Replacement .
  9. Install a protective caps to the evaporator outlet hose and the liquid line to prevent contamination and desiccant saturation.
  10. Disconnect the TXV low temperature sensor connector from the engine harness.

    11. Object Number: 931798 Size: SH
  11. Reposition the heater outlet hose clamp at the heater core using SA9111E .
  12. Remove the heater outlet hose from the heater core.

    13. Object Number: 931806 Size: SH
  13. Reposition the heater inlet hose clamp at the heater core using SA9111E .
  14. Remove the heater inlet hose at the heater core.
  15. Plug the heater core and the evaporator core with clean towels to prevent spillage when the HVAC module is removed.

    16. Object Number: 931912 Size: SH
  16. Remove the HVAC module seal nuts from the front of dash.
  17. Remove the instrument panel (I/P) retainer. Refer to Instrument Panel Retainer Replacement .
  18. Remove the shift control bracket. Refer to Transmission Control Replacement for the 5AT transmission or Transmission Control Replacement for the 4T45-E transaxle or Transmission Control Replacement for the Getrag 5 speed transmission.

    19. Object Number: 933579 Size: SH
  19. Remove the center floor air outlet duct by sliding the duct forward then up at the rear.

    20. Object Number: 1644812 Size: SH
  20. Remove the center I/P air outlet duct retainers from the cross car beam.
  21. Remove the center I/P air outlet duct from the cross car beam.

    22. Object Number: 932498 Size: SH
  22. Disconnect the blower motor electrical connector from the I/P wire harness.
  23. Disconnect the blower motor resistor electrical connector from the I/P wire harness.
  24. Disconnect the HVAC module electrical connector from the I/P wire harness.

    25. Object Number: 1644813 Size: SH
  25. Remove the defroster duct retainer from the cross car beam.
  26. Remove the defroster duct nuts from the HVAC module.
  27. Remove the defroster duct from the HVAC module.
  28. Disconnect the I/P wire harness clips from the HVAC module.

    29. Object Number: 933704 Size: SH
  29. Remove the metal bracket nut from the cross car beam.
  30. Remove the metal bracket nuts from the HVAC module.
  31. Remove the metal bracket from the HVAC module.

    32. Object Number: 933686 Size: SH
  32. Remove the HVAC module bolts from the right side of the cross car beam.
  33. Remove the HVAC module nut from the center of the cross car beam.
  34. Remove HVAC module bolt from the left side of the cross car beam.
  35. Remove the HVAC module from the vehicle.

Installation Procedure

    Object Number: 933686 Size: SH

    Important: Make sure the HVAC module seals are flush and even as they meet their mating surfaces. This will reduce the chance of leaks and ensure proper fit.

  1. Inspect the front of dash seal for proper alignment.
  2. Inspect the seal mating surfaces to ensure there are no obstructions.

    3. Important: Make sure the plastic molded in bracket at the center of the HVAC module is forward of the cross car beam during installation.

  3. Loose hang the HVAC module from the cross car beam.

    4. Object Number: 933704 Size: SH
  4. Install the metal bracket to the left side of the HVAC module.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the metal bracket bolts to the left side of the HVAC module.

    6. Tighten
    Tighten the bolts to 2 N·m (18 lb in).


    Object Number: 931912 Size: SH

    Important: New front of dash seal nuts must be used to prevent leaks.

  6. Install the HVAC module seal nuts to the front of dash. Draw the HVAC module to the front of dash evenly by alternating between the seal nuts.

    7. Tighten
    Tighten the nuts to 8 N·m (71 lb in).


    Object Number: 933686 Size: SH
  7. Install the HVAC module bolts to the right side of the cross car beam.
  8. Push up on the right side of the HVAC module while tightening the HVAC module bolts to the cross car beam.

    9. Tighten
    Tighten the bolts to 8 N·m (71 lb in).

  9. Install the HVAC module bolt to the left side of the cross car beam.

    10. Tighten
    Tighten the bolt to 8 N·m (71 lb in).

  10. Install the HVAC module nuts to the left side and center of the cross car beam.

    11. Tighten
    Tighten the nuts to 8 N·m (71 lb in).


    Object Number: 1644813 Size: SH
  11. Install the defroster duct to the HVAC module.
  12. Install the defroster duct nuts to the HVAC module.

    13. Tighten
    Tighten the nuts to 2.5 N·m (22 lb in).

  13. Install the defroster duct retainer to the cross car beam.
  14. Connect the I/P wire harness clips to the HVAC module.

    15. Object Number: 932498 Size: SH
  15. Connect the blower motor electrical connector to the I/P wire harness.
  16. Connect the blower motor resistor electrical connector to the I/P wire harness.
  17. Connect the HVAC module electrical connector to the I/P wire harness.

    18. Object Number: 1644812 Size: SH
  18. Install the center I/P duct to the cross car beam.
  19. Install the center I/P duct retainers to the cross car beam.

    20. Object Number: 933579 Size: SH
  20. Install the center floor air outlet by sliding forward onto the front floor air outlet then down and rearward over the rear floor air outlet.
  21. Install the shift control bracket. Refer to Transmission Control Replacement for the 5AT transmission or Transmission Control Replacement for the 4T45-E transaxle or Transmission Control Replacement for the Getrag 5 speed transmission.
  22. Install the I/P retainer. Refer to Instrument Panel Retainer Replacement .

    23. Object Number: 931806 Size: SH
  23. Install the heater inlet hose to the heater core.
  24. Install the heater inlet hose clamp to the heater core using SA9111E .

    25. Object Number: 931798 Size: SH
  25. Install the heater outlet hose to heater core outlet.
  26. Install the heater outlet hose clamp to the heater core using SA9111E .

    27. Object Number: 1506429 Size: SH
  27. Ensure the mating surfaces are clean and free of debris, and install new seal washers to the evaporator outlet hose and the liquid line. Refer to Sealing Washer Replacement .
  28. Install the evaporator outlet hose and the liquid line to the TXV.

    29. Object Number: 1506428 Size: SH
  29. Install the evaporator outlet hose and liquid line nut to the TXV.

    30. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  30. Enable the frontal and curtain air bags. Refer to the following procedures:
    31. •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
    •  SIR Disabling and Enabling
  31. Fill the coolant. Refer to Cooling System Draining and Filling .
  32. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging .
  33. Test the affected A/C joints for leaks using J 39400-A .