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 MANUALSCHEVROLET2006OPTRA (CANADA) L4-2.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGEVAPORATOR CORESERVICE AND REPAIR
2006 Chevrolet Optra (CANADA) L4-2.0L
Evaporator Core: Service and Repair
2006 Chevrolet Optra (CANADA) L4-2.0LSECTION Service and Repair
Evaporator Core Replacement
Removal Procedure
Caution: Refer to Battery Disconnect Caution Battery Disconnect Caution.
1. Disconnect the negative battery cable.
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging Service and Repair.
3. Remove the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement Service and Repair.
4. Remove A/C expansion valve. Refer to CELL LINK.
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. Remove the evaporator core cover screws from the evaporator core housing.
8. Remove the evaporator core.
Installation Procedure
Notice: Refer to Fastener Notice Fastener Notice.
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 A/C expansion valve. Refer to CELL LINK.
6. Install the heater/air distributor case assembly. Refer to HVAC Module Assembly Replacement Service and Repair.
7. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging Service and Repair.
8. 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.