GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Aurora 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Conditioning Evaporator Core Replacement

Removal Procedure
  1. Remove the HVAC Module. Refer to HVAC Module Assembly Replacement .
  2. Remove the mode actuator. Refer to Mode Actuator Replacement in HVAC Systems - Automatic.
  3. Remove the recirculation actuator screws.
  4. Remove the recirculation actuator.
  5. Remove the right temperature actuator screws.
  6. Remove the right temperature actuator.
  7. Remove the left temperature actuator screws.
  8. Remove the left temperature actuator.
  9. Remove the screws that retain the mode actuator bracket.
  10. Remove the mode actuator bracket.
  11. Remove the upper module case screws.

    12. Object Number: 292114 Size: SH
  12. Peel back the foam from the heater inlet.

    13. Object Number: 688088 Size: SH
  13. Remove the upper case.

    14. Object Number: 292069 Size: SH
  14. Remove the evaporator core.

Installation Procedure
  1. Add the proper amount of refrigerant oil to the evaporator. Refer to Refrigerant System Capacities .

    2. Object Number: 292069 Size: SH
  2. Install the evaporator core into the module housing.

    3. Object Number: 688088 Size: SH
  3. Install the upper module case.

    4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the module case screws.

    5. Tighten
    Tighten the screws to 1.4 N·m (12 lb in).


    Object Number: 292114 Size: SH
  5. Reapply the foam at the heater inlet.
  6. Install the mode actuator and bracket. Refer to Mode Actuator Replacement in HVAC Systems - Automatic.
  7. Install the left temperature actuator.

    8. Tighten
    Tighten the screws to 1.4 N·m (12 lb in).

  8. Install the right temperature actuator.

    9. Tighten
    Tighten the screws to 1.4 N·m (12 lb in).

  9. Install the recirculation actuator.

    10. Tighten
    Tighten the screws to 1.4 N·m (12 lb in).

  10. Install the HVAC module. Refer to HVAC Module Assembly Replacement .