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Home >> GMC >> 2003 >> Jimmy 2D Utility, Part Time, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> HVAC Module Assembly Replacement >> Removal Procedure
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Removal Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable the frontal and curtain air bags. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Drain engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
    4. Fig 1: Compressor Hose, Nut & TXV
    GM931940Courtesy of GENERAL MOTORS CORP.
  4. Remove suction line at TXV and install protective cap to suction line.
    5. Fig 2: Liquid Line, Nut & TXV
    GM931930Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Place protective cover over A/C lines and TXV to prevent contamination of A/C system.
  5. Remove liquid line at TXV and install protective cap to liquid line and TXV.
    6. Fig 3: Refrigerant Low Temperature Sensor & Engine Harness
    GM932516Courtesy of GENERAL MOTORS CORP.
  6. Disconnect TXV temperature sensor connector.
    7. Fig 4: Heater Outlet, Hose Clamp & Heater Core
    GM931798Courtesy of GENERAL MOTORS CORP.
  7. Reposition the heater inlet hose at the heater core using SA9111E  . See Special Tools .
  8. Remove heater hose at heater core outlet.
    9. Fig 5: Heater Inlet, Hose Clamp & Heater Core
    GM931806Courtesy of GENERAL MOTORS CORP.
  9. Reposition the heater outlet hose at the heater core using SA9111E  . See Special Tools .
  10. Remove heater hose at heater core inlet.
  11. Plug heater core pipes with clean towels to prevent spillage when removing module.
  12. Remove the instrument panel (I/P) retainer. Refer to Instrument Panel (I/P) Retainer Replacement in Instrument Panel, Gages, and Console.
  13. Remove the shift control bracket. Refer to Transmission Shift Control Bracket Replacement in Manual Transmission - Getrag 5, or Transmission Shift Control Bracket Replacement in Automatic Transaxle - AF33-5.
    14. Fig 6: Center Floor Air Outlet Duct
    GM933579Courtesy of GENERAL MOTORS CORP.
  14. Remove front rear duct by sliding forward on heater duct then up at rear and then rearward.
    15. Fig 7: Center I/P Air Outlet Duct & Retainers
    GM931922Courtesy of GENERAL MOTORS CORP.
  15. Remove auxiliary duct assembly.
    16. Fig 8: Blower Motor Electrical Connector & I/P Wire Harness
    GM932498Courtesy of GENERAL MOTORS CORP.
  16. Disconnect I/P harness at blower motor connector.
  17. Disconnect I/P harness at blower motor resistor connector.
  18. Disconnect I/P harness at HVAC module connector.
    19. Fig 9: Defroster Duct & Retainer
    GM932519Courtesy of GENERAL MOTORS CORP.
  19. Remove defroster duct to HVAC module nuts and defroster duct.
  20. Disconnect I/P wire harness clips from HVAC module.
    21. Fig 10: Metal Bracket & Nut
    GM933704Courtesy of GENERAL MOTORS CORP.
  21. Remove left HVAC module to cross car beam stamped metal L-type bracket from HVAC module and cross car beam.
    22. Fig 11: HVAC Module, Bolts & Cross Car Beam
    GM933686Courtesy of GENERAL MOTORS CORP.
  22. Remove remaining HVAC module to cross car beam and front of dash fasteners and remove HVAC module.
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