Refrigerant Pressure Sensor / Switch: Service and Repair

AIR CONDITIONING (A/C) REFRIGERANT PRESSURE SENSOR REPLACEMENT

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




2. Disconnect the electrical connector from the refrigerant pressure sensor.
3. Remove the refrigerant pressure sensor from the compressor hose.

INSTALLATION PROCEDURE




1. Lubricate the refrigerant pressure sensor O-ring with mineral oil. Refer to O-Ring Replacement.

IMPORTANT: Use R-12 refrigerant oil (mineral) to lubricate O-rings. Use of R-134a polyalkylene glycol (PAG) oil will cause premature corrosion of fitting joints.

2. Hand start the refrigerant pressure sensor to the compressor hose, taking care not to pinch the O-ring and tighten.

Tighten the pressure sensor to 4 N.m (35 lb in).

NOTE: Refer to Fastener Notice.

3. Install the electrical connector to the refrigerant pressure sensor.
4. Lower the vehicle.