Overhaul

Overhaul:

1. Pull the A/C thermostat sensor out of the evaporator fins.
2. Remove the self-tapping screws and clips from the housing.
3. Carefully separate the housings, and remove the evaporator covers.
4. Remove the expansion valve if necessary.

NOTE: When loosening the expansion valve nuts, use a second wrench to hold the expansion valve or evaporator pipe, otherwise, they can be damaged.

5. Assemble in the reverse order of disassembly, and
^ Replace the all O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil (Nippondenso: ND-0IL8, P/N 38899-PR7-A01 or Sanden: SP-10: P/N 38899-P13-A01) before installing them.

NOTE: Be sure to use the right O-rings for HFC-134a (R-134a) to avoid leakage.

^ Install the expansion valve capillary tube with the capillary tube in contact with the suction line directly, and wrap it with tape.
^ Reinstall the A/C thermostat sensor to its original location.