Expansion Valve: Service and Repair

A/C EXPANSION VALVE

REMOVAL PROCEDURE




1. Disconnect the negative battery cable.

2. Recover the refrigerant. Refer to "Discharging, Adding Oil, Evacuating, and Charging Procedures for A/C System".

3. Remove the instrument panel carrier assembly. Refer to Instrumentation/Driver Information.

4. Remove the heater/air distribution case assembly. Refer to "Heater/Air Distribution Case Assembly".

5. Remove the evaporator. Refer to "Evaporator Core".




6. Remove the expansion valve connector block retaining bolts.

7. Remove the expansion valve.




8. Discard the O-rings.

INSTALLATION PROCEDURE




1. Clean the O-ring surface areas of dirt or contamination.

2. Install new O-rings on the evaporator tubes.
3. Install a new expansion valve onto the evaporator tubes.
4. Install the expansion valve retaining bolts.

Tighten
Tighten the expansion valve retaining bolts to 12 N.m (106 lb-in).

5. Install the evaporator into the heater/air distribution case. Refer to "Evaporator Core".




6. Install the heater/air distribution case assembly. Refer to "Heater/Air Distribution Case Assembly".

7. Install the instrument panel carrier assembly. Refer to Instrumentation/Driver Information.
8. Connect the negative battery cable.
9. Evacuate and recharge the system. Refer to "Discharging, Adding Oil, Evacuating, and Charging Procedures for A/C System".