Expansion Valve: Service and Repair

THERMOSTATIC EXPANSION VALVE







Removal and Installation

NOTE:
- An in-line filter is installed in the auxiliary evaporator inlet line at the floorpan bracket connection. A restriction in this filter may cause misdiagnosis of a failed thermostatic expansion valve. This filter must be inspected before a new thermostatic expansion valve is installed.
- Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

1. Recover the refrigerant.
2. Remove the D-pillar trim panel. Service and Repair
3. Detach the rear portion of the LH quarter trim panel and position away from the thermostatic expansion valve.
4. Remove the 4 clips and the thermostatic expansion valve cover.







5. Remove the insulating tape.
- Retain the tape for reuse.







6. Remove the temperature sensing bulb clip and detach the temperature sensing bulb from the evaporator outlet line.
7. Disconnect the 2 thermostatic expansion valve fittings and remove the thermostatic expansion valve.
- Discard the O-ring seals.
- To install, tighten to 23 Nm (17 lb-ft).

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

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