GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Matiz 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Air Conditioning Evaporator Core Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1618473 Size: SH
  1. Disconnect the negative battery cable.
  2. Evacuate the A/C system. Refer to Refrigerant Recovery and Recharging .
  3. Remove the heater/air distribution case assembly. Refer to Heater Assembly Replacement .

    4. Object Number: 1618494 Size: SH
  4. Remove the screws that secure the evaporator case assembly.

    5. Object Number: 1618497 Size: SH
  5. Remove the evaporator case cover screws.

    6. Object Number: 1618498 Size: SH
  6. Remove the evaporator core from the evaporator case.
  7. Remove the expansion valve stud bolts with the expansion valve. Refer to Thermal Expansion Valve Replacement .

Installation Procedure

    Object Number: 1618498 Size: SH
  1. Install the expansion valve. Refer to Thermal Expansion Valve Replacement .
  2. Install the evaporator core into the case.

    3. Object Number: 1618497 Size: SH
  3. Install the evaporator core case cover with the screws.

    4. Object Number: 1618494 Size: SH
  4. Install the evaporator core case with the screws.

    5. Object Number: 1618473 Size: SH
  5. Install the instrument panel carrier assembly. Refer to Instrument Panel Carrier Replacement .
  6. Connect the negative battery cable.
  7. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .