Expansion Block/Orifice Tube: Service and Repair

Air Conditioning Evaporator Thermal Expansion Valve Screen Replacement (1st Design)

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.




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




4. Remove the air conditioning evaporator thermal expansion valve screen.

Installation Procedure




1. Install the air conditioning evaporator thermal expansion valve screen.




2. Install new sealing washers on the condenser tube and evaporator hose fittings.
3. Install the condenser tube and evaporator hose to the TXV.

Notice: Refer to Fastener Notice.

4. Install the TXV nut.

Tighten the nut to 20 N.m (15 lb ft).

5. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
6. Leak test the fittings using the J 39400-A.