Expansion Valve: Service and Repair

Thermostatic Expansion Valve

Removal
1 Remove the cover and disconnect the battery ground cable. For additional information, refer to Specifications
2
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
3 Remove the heater and evaporator core housing. For additional information, refer to Heater Core and Evaporator Core Housing Service and Repair




4
CAUTION: Always plug any open connections to prevent contamination.
Remove the TXV assembly.
- Carefully cut and release the insulation for access.
- Remove the 2 Allen bolts.
- Remove and discard the 4 O-ring seals.

Installation
1
CAUTION: Lubricate the new seals with clean refrigerant oil.
NOTE:
Make sure all component mating faces are clean.
Install the TXV assembly.
- Install the new O-ring seals.
- Install and tighten the Allen bolts to 6 Nm (4 lb.ft).
- Replace the TXV insulation.
2 Install the heater and evaporator core housing. For additional information, refer to Heater Core and Evaporator Core Housing Service and Repair
3 Connect the battery ground cable and install the cover. For additional information, refer to Specifications