Thermal Expansion Valve

THERMAL EXPANSION VALVE REPLACEMENT

TOOLS REQUIRED
J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE
1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging.




2. Remove the evaporator tube to thermal expansion valve (TXV) nut (1).
3. Disconnect the evaporator tube from the TXV.
4. Remove and discard the sealing washers.
5. Cap off the evaporator inlet and outlet tube.

IMPORTANT: Cap or tape the open evaporator inlet and outlet tubes immediately to prevent contamination of the refrigerant system.




6. Remove the TXV to evaporator bolts.
7. Remove the TXV from the evaporator core.
8. Remove and discard the sealing washers.

INSTALLATION PROCEDURE
1. Install the new sealing washers onto the evaporator core.




2. Install the TXV to the evaporator core.
3. Install the TXV to evaporator bolts.

Tighten the bolts to 7 N.m (62 lb in).

NOTE: Refer to Fastener Notice.

4. Remove the cap or tape from the evaporator inlet and outlet tubes.
5. Install the new sealing washers onto the evaporator inlet and outlet tubes.
6. Install the evaporator tube to the TXV.




7. Install the evaporator tube nut (1).

Tighten the nut to 17 N.m (13 lb ft).

8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
9. Leak test the fittings of the component using J 39400-A.