Refrigerant Pressure Sensor / Switch: Service and Repair

A/C REFRIGERANT PRESSURE SENSOR REPLACEMENT

REMOVAL PROCEDURE
The A/C pressure sensor is located on the condenser end of the compressor hose. A Schrader valve is located in the A/C pressure sensor fitting.

Tools Required
J 34611-A A/C Valve Core Remover and Installer




1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Service and Repair
2. Disconnect the refrigerant pressure sensor electrical connector.




3. Remove the refrigerant pressure sensor from the fitting.
4. Remove and discard the O-ring.




5. If necessary remove the service port valve core using J 34611-A.

INSTALLATION PROCEDURE




1. If removed, install the service port valve core using J 34611-A.




2. Install a NEW O-ring seal in the refrigerant pressure sensor.
Coat the O-ring seal with 525 viscosity refrigerant oil.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the pressure sensor to the fitting.

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




4. Connect the refrigerant pressure sensor electrical connector.
5. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging. Service and Repair
6. Inspect the system operation.
7. Perform the leak test. Refer to Leak Testing.
Leak Testing - HVAC System - Manual