Expansion Valve: Service and Repair

Rear Interior Roof Mount Evaporator And Blower:

Remove or Disconnect
This system incorporates an expansion valve that does not utilize an external equalizer line.

1. Negative battery cable.
2. Discharge and recover refrigerant from the system.
3. Rear duct (41).
4. Blower motor ground wire screw and ground wire.
5. Blower motor harness connector.

Important: Before removing the lower case screws, sup- port the case and motor assembly to prevent damage to the case or the motor.

6. Lower case-to-upper case screws (55).
7. Lower case (56) and motor assembly (53).
8. Expansion valve sensing bulb clamps (69).
9. Expansion valve tube (63) from expansion valve (67)
^ Cap or plug the open connections.

10. Expansion valve (67) and insulator (64) from the connector on the evaporator core.
^ Cap or plug the open connections.

Install or Connect
1. New expansion valve (67) and insulator (64) to the front of the evaporator core.
^ Use a new 0-ring seal coated with 525 viscosity refrigerant oil.

2. Expansion valve tube (63) to the expansion valve (67).
^ Use a new 0-ring coated with 525 viscosity refrigerant oil.

3. Sensing bulb and bulb clamps (69).
4. Lower case (56) with the blower motor assembly (53) to the upper case (51).
5. Lower case-to-upper case screws (55).
6. Blower motor harness connector.
7. Ground wire and screw.
8. Rear duct (41).
9. Negative battery cable.
10. Refrigerant to the system.
^ Check the system for leaks.