RAM 2500 Truck 2WD V8-5.7L VIN D (2004)
Refrigerant Pressure Sensor / Switch: Service and Repair
REMOVAL
NOTE: It is not necessary to discharge the refrigerant system to replace the A/C pressure transducer.
1. Disconnect and isolate the battery negative cable.
2. Disconnect the wire harness connector from the A/C pressure transducer.
A/C Pressure Transducer - 3.7L Shown
3. Remove the A/C pressure transducer from the fitting on the discharge line.
4. Remove the O-ring seal from the A/C pressure transducer fitting and discard.
INSTALLATION
NOTE: Replace the O-ring seal before installing the A/C pressure transducer.
1. Lubricate a new rubber O-ring seal with clean refrigerant oil and install it on the A/C pressure transducer fitting. Use only the specified O-rings as
they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
2. Install and tighten the A/C pressure transducer onto the discharge line fitting. The transducer should be hand-tightened securely onto the discharge
line fitting.
3. Connect the wire harness connector to the A/C pressure transducer.
4. Reconnect the battery negative cable.
