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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 Replacement - Auxiliary >> 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. Refer to REFRIGERANT RECOVERY AND RECHARGING   . 
  2. Remove the left rear quarter trim panel.
  3. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM  in Engine Cooling.
  4. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  5. Remove the level ride air compressor. Refer to AIR COMPRESSOR REPLACEMENT in Automatic Level Control.
  6. Remove the auxiliary A/C line block fitting bolt.
    Fig 1: Removing Auxiliary A/C Line Block Fitting Bolt
    G01482716Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the A/C line block fitting.
  8. Remove and discard the sealing washers.

    Important:  Cap or tape the open A/C refrigerant lines immediately to prevent system contamination.

  9. Cap or tape the A/C lines.
  10. Disconnect the auxiliary heater hoses from the heater core pipes.
    Fig 2: Disconnecting Auxiliary Heater Hoses From Heater Core Pipes
    G01482717Courtesy of GENERAL MOTORS CORP.
  11. Lower the vehicle.
  12. Remove the air distribution duct mounting bolts.
    Fig 3: Removing Air Distribution Duct Mounting Bolts
    G01482718Courtesy of GENERAL MOTORS CORP.
  13. Remove the air distribution duct mounting retainer.
  14. Disconnect the air distribution duct from the HVAC module.
  15. Disconnect the auxiliary blower motor electrical connector.
  16. Disconnect the auxiliary blower motor resistor electrical connector.
  17. Disconnect the auxiliary temperature actuator electrical connector.
  18. Remove the HVAC module assembly mounting bolts and nut.
    Fig 4: Removing HVAC Module Assembly Mounting Bolts & Nut
    G01482719Courtesy of GENERAL MOTORS CORP.
  19. Disconnect the left PSD module from the mounting bracket and reposition aside.
  20. Remove the HVAC module assembly from the vehicle.
  21. Remove and discard the HVAC module assembly to body seals.
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