Refrigerant Pressure Sensor / Switch: Service and Repair

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (LNJ)

Removal Procedure




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

Installation Procedure






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.

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

Notice: Refer to Fastener Notice.

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).

3. Install the electrical connector to the refrigerant pressure sensor.