Refrigerant Pressure Sensor / Switch: Service and Repair

AIR CONDITIONING (A/C) REFRIGERANT PRESSURE SENSOR REPLACEMENT

TOOLS REQUIRED
J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to vehicle Lifting.




2. Remove the air baffle bolts.
3. Remove the air baffle.




4. Disconnect the A/C refrigerant pressure sensor electrical connector.
5. Remove the A/C refrigerant pressure sensor from the evaporator inlet tube.

INSTALLATION PROCEDURE
1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the evaporator inlet tube fitting.

IMPORTANT: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.

2. Lightly coat the O-ring seal with mineral base 525 viscosity refrigerant oil.

NOTE: Refer to Fastener Notice in Service Precautions.




3. Install the A/C refrigerant pressure sensor to the evaporator inlet tube.

Tighten
Tighten the sensor to 5 N.m (44 lb in).

4. Connect the A/C refrigerant pressure sensor electrical connector.
5. Leak test the fittings of the component using J 39400-A.




6. Install the air baffle.
7. Install the air baffle bolts.

Tighten
Tighten the bolts to 20 N.m (15 lb ft).

8. Lower the vehicle.