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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 741 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> HVAC Module Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. 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  in Engine Cooling.
  3. Remove the left wiper arm linkage nuts.

    Reposition the left wiper arm linkage for access.

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

  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.
    Fig 1: Disconnecting Electrical Connector From Blower Motor Resistor
    G01482470Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the electrical connector from the evaporator temperature sensor.
    Fig 2: Disconnecting Evaporator Temperature Sensor Electrical Connectors
    G01482471Courtesy of GENERAL MOTORS CORP.
  8. Disconnect all of the HVAC actuator electrical connectors.
  9. Remove the IP carrier. Refer to INSTRUMENT PANEL (I/P) CARRIER REPLACEMENT  in Instrument Panel, Gages and Console.
  10. Remove the evaporator outlet tube nut.
  11. Disconnect the evaporator outlet tube and evaporator inlet tube from the TXV.
    Fig 3: Disconnecting Evaporator Outlet Tube & Evaporator Inlet Tube From TXV
    G01482472Courtesy of GENERAL MOTORS CORP.
  12. Remove and discard the sealing washers.
  13. Remove the heater inlet hose from the heater core. Refer to HEATER HOSE REPLACEMENT - INLET (WITH C60)   or HEATER HOSE REPLACEMENT - INLET (WITH C69)   . 
  14. Remove the heater outlet hose from the heater core. Refer to HEATER HOSE REPLACEMENT - OUTLET (WITH C60)   or HEATER HOSE REPLACEMENT - OUTLET (WITH C69)   . 
  15. Remove the HVAC module to dash panel sound barrier nuts.
    Fig 4: Removing HVAC Module To Dash Panel Sound Barrier Nuts
    G01482473Courtesy of GENERAL MOTORS CORP.
  16. Remove the HVAC module assembly from the cowl.
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