RAM 2500 Van V8-5.2L VIN Y (1998)
Low Pressure Sensor / Switch: Service and Repair
Low Pressure Cut-Out Switch Replacement
REMOVAL
1. Disconnect and isolate the battery negative cable.
Low Pressure Cut-Off Switch Remove/Install
2. Unplug the wire harness connector from the low pressure cut-off switch on the suction line jumper near the filter-drier.
3. Unscrew the low pressure cut-off switch from the fitting on the suction line jumper.
4. Remove the 0-ring seal from the suction line jumper fitting and discard.
INSTALLATION
1. Lubricate a new 0-ring seal with clean refrigerant oil and install it on the suction line jumper fitting. Use only the specified 0-rings as they are
made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the compressor in the vehicle.
2. Install and tighten the low pressure cut-off switch on the suction line jumper fitting. Tighten the switch to 4 N.m (2.9 ft. lbs.).
3. Plug the wire harness connector into the low pressure cut-off switch.
4. Connect the battery negative cable.
