RAM 1500 Van V8-5.2L VIN Y (1999)
Expansion Valve: Service and Repair
Front Expansion Valve
FRONT EXPANSION VALVE
WARNING: REVIEW THE WARNINGS AND CAUTIONS BEFORE PERFORMING THE FOLLOWING OPERATION.
REMOVAL
1. Disconnect and isolate the battery negative cable.
2. Recover the refrigerant from the refrigerant system. See Refrigerant Recovery.
See: Service and Repair/Refrigerant Recovery
Front Expansion Valve Remove/Install
3. Remove the screw that secures the block fitting of the suction line jumper to the expansion valve, and separate the fitting from the expansion valve.
Install plugs in, or tape over all of the opened refrigerant line fittings.
4. Move the suction line jumper and filter-drier as a unit away from the expansion valve far enough to access the mounting screws.
5. Remove the two screws that secure the expansion valve to the evaporator coil block fitting, and separate the expansion valve from the fitting.
Install plugs in, or tape over all of the opened refrigerant line fittings.
INSTALLATION
1. Remove the tape or plugs from the evaporator coil block fitting and the evaporator side of the expansion valve. Position the expansion valve to the
evaporator coil block fitting and secure the connection with two screws. Tighten the mounting screws to 11.4 Nm (100 in. lbs.).
2. Remove the tape or plugs from the block fitting on the suction line jumper and the expansion valve. Position the suction line jumper block fitting
to the expansion valve and secure the connection with a screw. Tighten the mounting screw to 22 Nm (200 in. lbs.).
3. Connect the battery negative cable.
4. Evacuate the refrigerant system. See Refrigerant System Evacuation.
See: Service and Repair/Refrigerant System Evacuate
5. Charge the refrigerant system. See Refrigerant System Charging.
See: Service and Repair/Refrigerant System Charge