chevrolet Workshop Repair Guides

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Expansion Block/Orifice Tube|Service and Repair|Page 6283 > < Evaporator Drain Tube|Service and Repair
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Expansion Block/Orifice Tube: Service and Repair

Air Conditioning Evaporator Thermal Expansion Valve Replacement

Special Tools

GE 39400-A - Halogen Leak Detector

For equivalent regional tools, refer to Special Tools   (See: Tools and Equipment/Heating, Ventilation, and Air Conditioning).

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging   (See: Service and Repair/Procedures/Refrigerant Recovery and

Recharging).

2. Unclip brake pipes.

3. Remove the air conditioning evaporator hose bolt from the air conditioning evaporator thermal expansion valve.
4. Remove the air conditioning evaporator hose (1) from air conditioning evaporator thermal expansion valve.
5. Remove the 2 air conditioning evaporator thermal expansion valve bolts (2).
6. Remove the air conditioning evaporator thermal expansion valve (3).
7. Remove and DISCARD the seals from the air conditioning evaporator hose and from the evaporator core pipes.

Installation Procedure

Expansion Block/Orifice Tube|Service and Repair|Page 6283 > < Evaporator Drain Tube|Service and Repair