Air Conditioning Evaporator Thermal Expansion Valve Replacement

Air Conditioning Evaporator Thermal Expansion Valve Replacement

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

1. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement (Charge Air Cooler Inlet Pipe Replacement).
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).




3. Remove the condenser tube and evaporator hose from the thermal expansion valve (TXV).
4. Remove and discard the seal washers.




5. Remove the TXV bolts.
6. Remove the TXV.
7. Remove and discard the seal washers.

Installation Procedure




1. Install new seal washers to the evaporator core fittings. Refer to Air Conditioning System Seal Replacement (Service and Repair).
2. Install the TXV.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the TXV bolts.

Tighten the bolts to 7 Nm (62 lb in).




4. Install new sealing washers on the condenser tube and evaporator hose fittings. Refer to Air Conditioning System Seal Replacement (Service and Repair).
5. Install the condenser tube and evaporator hose to the TXV.
6. Install the TXV nut.

Tighten the nut to 20 Nm (15 lb ft).

7. Install the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement (Charge Air Cooler Inlet Pipe Replacement).
8. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
9. Leak test the fittings using the J 39400-A .