Refrigerant Pressure Sensor / Switch: Service and Repair

2005 Chevrolet Equinox FWD V6-3.4L VIN FSECTION 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.

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 10 N.m (89 lb in).

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the electrical connector to the refrigerant pressure sensor.
4. Lower the vehicle.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.