Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2005OPTRA (CANADA) L4-2.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGEVAPORATOR CORESERVICE AND REPAIR
2005 Chevrolet Optra (CANADA) L4-2.0L
Evaporator Core: Service and Repair
2005 Chevrolet Optra (CANADA) L4-2.0LSECTION Service and Repair
Air Conditioning Evaporator Core Replacement
Removal Procedure
Caution:
Refer to Battery Disconnect Caution Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
3. Remove the heater/air distributor case assembly. Refer to Air Conditioning and Heater Module Assembly Removal and Installation Service and Repair.
4. Remove the wiring harness and electrical connectors from the heater/air distributor case assembly.
5. Remove the screws that connect the heater core housing and the evaporator housing.
6. Remove the evaporator core cover screws from the evaporator core housing.
7. Remove the evaporator core.
Installation Procedure
Notice:
Refer to Fastener Notice Fastener Notice in Cautions and Notices.
1. Install the evaporator core into the case.
2. Install the screws on the evaporator core housing.
Tighten the evaporator core cover screws to 1.2 Nm (11 lb in).
3. Install the screws that connect the heater core housing and the evaporator housing.
Tighten the screws to 1.2 Nm (11 lb in).
4. Connect the wiring harness and the electrical connectors to the heater/air distributor case assembly.
5. Install the heater/air distributor case assembly. Refer to Air Conditioning and Heater Module Assembly Removal and Installation Service and Repair.
6. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
7. Connect the negative battery cable.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.