Expansion Valve: Service and Repair

Thermostatic Expansion Valve





All vehicles

1. Recover the refrigerant.

2. If equipped, remove the 4 nuts and the strut tower cross brace.





5.0L (4V) vehicles

3. Remove the engine appearance cover.

5.4L (4V) vehicles

4. Drain the engine coolant. For additional information, refer to Cooling System.

5. Disconnect the heater hose fittings at the rear of the RH cylinder head and position the heater hoses aside.

6. Remove the Exhaust Gas Recirculation (EGR) system module tube.

All vehicles

7. Remove the Thermostatic Expansion Valve (TXV) fitting nut and disconnect the fitting.
- Discard the gasket seals.

- To install, tighten to 15 Nm (133 lb-in).


8. Remove the 2 TXV (Thermostatic Expansion Valve) bolts.
- To install, tighten to 7 Nm (62 lb-in).


9. Remove the TXV (Thermostatic Expansion Valve).
- Discard the gasket seals.


10. To install, reverse the removal procedure.
- Install new gasket seals.

- Add the correct amount of clean PAG oil to the refrigerant system.


11. Evacuate, leak test and charge the refrigerant system.