Operation CHARM: Car repair manuals for everyone.

Expansion Valve: Service and Repair




Thermostatic Expansion Valve













Removal and Installation

1. Recover the refrigerant.

2. Disconnect the A/C pressure transducer electrical connector and detach the wire harness from the Thermostatic Expansion Valve (TXV) stud.

3. Remove the TXV fitting nut and disconnect the fitting.
- Discard the gasket seals.

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

4. Remove the 2 TXV bolts.

5. Remove the TXV.
- Discard the gasket seals.

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

- Lubricate the refrigerant system with the correct amount of clean PAG oil.

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