GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra - Mexico 🢒 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: 1308297 Size: SH
  1. Disconnect the negative battery cable.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement .
  4. Remove A/C expansion valve. Refer to Thermal Expansion Valve Replacement .
  5. Remove the wiring harness and electrical connectors from the heater/air distributor case assembly.
  6. Remove the screws that connect the heater core housing and the evaporator housing.

    7. Object Number: 1308340 Size: SH
  7. Remove the evaporator core cover screws from the evaporator core housing.
  8. Remove the evaporator core.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1308340 Size: SH
  1. Install the evaporator core into the case.
  2. Install the screws on the evaporator core housing.

    3. Tighten
    Tighten the evaporator core cover screws to 1.2 N·m (11 lb in).


    Object Number: 1308341 Size: SH
  3. Install the screws that connect the heater core housing and the evaporator housing.

    4. Tighten
    Tighten the screws to 1.2 N·m (11 lb in).

  4. Connect the wiring harness and the electrical connectors to the heater/air distributor case assembly.
  5. Install A/C expansion valve. Refer to Thermal Expansion Valve Replacement .
  6. Install the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement .
  7. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  8. Connect the negative battery cable.