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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (HVAC Systems - Automatic) >> Removal & Installation >> HVAC Module Assembly >> Removal
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HVAC Module Assembly: Removal

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 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. See RECOVERY, EVACUATION & RECHARGING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING. Drain the cooling system. Remove the wiper motor module assembly.
    2. NOTE: The defroster door must be closed to allow clearance during defroster duct removal.
  2. Set the HVAC controls in the vent setting to close the defroster door. Remove the blower motor. See BLOWER MOTOR  . Disconnect the electrical connector from the blower motor resistor. See Figure .
  3. Disconnect the electrical connector from the evaporator temperature sensor. See Fig 1 . Disconnect all of the HVAC electrical actuator connectors. Remove the I/P carrier.
  4. Remove the evaporator outlet tube nut. See Figure . Disconnect the evaporator outlet and inlet tubes from the TXV. Disconnect the heater inlet hose from the heater core. See HEATER PIPE-INLET  . Disconnect the heater outlet hose from the heater core.
  5. Remove the HVAC module to dash panel sound barrier nuts. See Figure . Remove the HVAC module assembly from the cowl.
Fig 1: Disconnecting Electrical Connector From Evaporator Temperature Sensor
G00213879Courtesy of GENERAL MOTORS CORP.
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