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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 >> Installation
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HVAC Module Assembly: Installation

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.
NOTE: Ensure proper alignment of the HVAC module assembly and HVAC module drain through the cowl.
  1. Install the HVAC module assembly to the cowl. Install the HVAC module assembly to dash panel sound barrier nuts. See Figure . Do not tighten the HVAC module assembly nuts at this time. Install the heater outlet hose to the heater core.
  2. Install the heater inlet hose to the heater core. See HEATER PIPE-INLET  . Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant tubes and the TXV.
    3. NOTE: Flat washer type seals do not require lubrication.
  3. Install new sealing washers to the evaporator inlet and outlet tubes. See Figure . Connect the evaporator inlet tube to the evaporator outlet tube. Connect the evaporator inlet and outlet tubes to the TXV. Install the evaporator outlet tube nut at the TXV. Tighten to specified torque. See TORQUE SPECIFICATIONS  .
  4. Install the I/P carrier. Connect all of the HVAC electrical actuator connectors. Connect the electrical connector to the evaporator temperature sensor. See Figure .
  5. Connect the electrical connector to the blower motor resistor. See Figure . Install the blower motor. See BLOWER MOTOR  .
  6. Tighten the HVAC module assembly to dash panel sound barrier nuts. See Figure . Tighten to specified torque. See TORQUE SPECIFICATIONS  . Install the wiper motor module assembly.
  7. Fill the coolant system. Evacuate and recharge the A/C system. See RECOVERY, EVACUATION & RECHARGING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING.
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