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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 >> Installation Procedure

Installation 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.

Important:  Ensure proper alignment of the HVAC module assembly and HVAC module drain tube through the cowl.

  1. Install the HVAC module assembly to the cowl.
  2. Install the HVAC module assembly to dash panel sound barrier nuts.

    Do not tighten the HVAC module assembly nuts at this time.

    Fig 1: Installing HVAC Module To Dash Panel Sound Barrier Nuts
    G01482474Courtesy of GENERAL MOTORS CORP.
  3. Install the heater outlet hose to the heater core. Refer to HEATER HOSE REPLACEMENT - OUTLET (WITH C60)   or HEATER HOSE REPLACEMENT - OUTLET (WITH C69)   . 
  4. Install the heater inlet hose to the heater core. Refer to HEATER HOSE REPLACEMENT - INLET (WITH C60)   or HEATER HOSE REPLACEMENT - INLET (WITH C69)   . 
  5. Install new sealing washers onto the evaporator inlet and outlet tubes. Refer to SEALING WASHER REPLACEMENT   . 
  6. Connect the evaporator inlet tube to the evaporator outlet tube.
  7. Connect the evaporator inlet and outlet tubes to the TXV.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  8. Install the evaporator outlet tube nut at the TXV.

    Tighten 

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

    Fig 2: Installing Evaporator Outlet Tube Nut At TXV
    G01482475Courtesy of GENERAL MOTORS CORP.
  9. Install the IP carrier. Refer to INSTRUMENT PANEL (I/P) CARRIER REPLACEMENT  in Instrument Panel, Gages and Console.
  10. Connect all of the HVAC actuator electrical connectors.
  11. Connect the electrical connector to the evaporator temperature sensor.
    Fig 3: Connecting Evaporator Temperature Sensor Electrical Connectors
    G01482476Courtesy of GENERAL MOTORS CORP.
  12. Connect the electrical connector to the blower motor resistor.
    13. Fig 4: Connecting Electrical Connector To Blower Motor Resistor
    G01482477Courtesy of GENERAL MOTORS CORP.
  13. Install the blower motor. Refer to BLOWER MOTOR REPLACEMENT   . 
  14. Tighten the HVAC module assembly to dash panel sound barrier nuts.

    Tighten 

    Tighten the nuts to 10 N.m (89 lb in).

    15. Fig 5: Tightening HVAC Module Assembly To Dash Panel Sound Barrier Nuts
    G01482478Courtesy of GENERAL MOTORS CORP.
  15. Install the left wiper arm linkage.
  16. Install the left wiper arm linkage nuts.

    Tighten 

    Tighten the nuts to 5 N.m (44 lb in).

  17. Fill the coolant system. Refer to DRAINING AND FILLING COOLING SYSTEM  in Engine Cooling.
  18. Evacuate and recharge the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING   . 
  19. Leak test the fittings of the component using the J 39400-A. 
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