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Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant from the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  3. Remove the wiper motor module assembly. Refer to WIPER MOTOR MODULE REPLACEMENT .

    Important:  The defroster door must be closed to allow clearance during defroster duct removal.

    Fig 1: Removing HVAC Module Assembly
    G01498892Courtesy of GENERAL MOTORS CORP.
  4. Set the HVAC controls in the vent setting to close the defroster door.
  5. Remove the blower motor. Refer to BLOWER MOTOR REPLACEMENT  .
  6. Disconnect the electrical connector from the blower motor resistor.
  7. Disconnect the electrical connector from the evaporator temperature sensor.
  8. Disconnect all of the HVAC electrical actuator connectors.
  9. Remove the I/P carrier. Refer to INSTRUMENT PANEL (I/P) CARRIER REPLACEMENT .
    Fig 2: Disconnecting Electrical Connector From Blower Motor Resistor.
    G01498893Courtesy of GENERAL MOTORS CORP.
  10. Remove the evaporator outlet tube nut.
  11. Disconnect the evaporator outlet and inlet tubes from the TXV.
    Fig 3: Removing Evaporator Outlet Tube Nut
    G01498894Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the heater inlet hose from the heater core. Refer to HEATER HOSE REPLACEMENT - INLET  .
  13. Disconnect the heater outlet hose from the heater core. Refer to HEATER HOSE REPLACEMENT - OUTLET  .
  14. Remove the HVAC module to dash panel sound barrier nuts.
  15. Remove the HVAC module assembly from the cowl.
    Fig 4: Disconnecting Heater Inlet Hose From Heater Core
    G01498895Courtesy of GENERAL MOTORS CORP.
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