Expansion Valve: Service and Repair

THERMOSTATIC EXPANSION VALVE

REMOVAL

CAUTION: Refrigerant compressor oil F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system O-ring seals only and should not be added to R-134a refrigerant systems as an A/C compressor lubricant. PAG refrigerant compressor oil F7AZ-19D589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.

1. Recover the refrigerant.
2. Remove the access panel from the RH rear quarter trim panel.
3. Remove the jack.







4. Remove the A/C lines from the thermostatic expansion valve (TXV).
1 Disconnect the A/C lines from the TXV.
2 Disconnect the TXV from the evaporator core.

INSTALLATION
1. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

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