RAM 1500 Van V8-5.2L CNG VIN T (1999)
2. Remove the tape or plugs from the refrigerant line fittings on the suction line and the suction line jumper. Connect the flare nut on the suction line
to the threaded fitting on the suction line jumper. Tighten the fitting to 47 Nm (420 in. lbs.).
3. Remove the tape or plugs from the discharge line block fitting and the inlet of the condenser. Connect the liquid line to the condenser inlet and
secure the connection with a screw. Tighten the mounting screw to 22 Nm (200 in. lbs.).
4. Reinstall the radiator grille to the vehicle.
5. Plug in the wire harness connector to the high pressure cut-off switch.
6. Connect the battery negative cable.
7. Evacuate the refrigerant system. See Refrigerant System Evacuation.
See: Service and Repair/Refrigerant System Evacuate
8. Charge the refrigerant system. See Refrigerant System Charging.
See: Service and Repair/Refrigerant System Charge
Suction Line Jumper
A/C SUCTION LINE JUMPER
Any kinks or sharp bends in the refrigerant plumbing will reduce the capacity of the entire air conditioning system. Kinks and sharp bends reduce
the flow of refrigerant in the system. High pressures are produced in the refrigerant system when the air conditioning compressor is operating.
Extreme care must be exercised to make sure that each of the refrigerant system connections is pressure-tight and leak free.
WARNING: REVIEW THE WARNINGS AND CAUTIONS BEFORE PERFORMING THE FOLLOWING OPERATION.
REMOVAL
1. Disconnect and isolate the battery negative cable.
2. Remove the low pressure cut-off switch from the fitting on the suction line jumper. See Low Pressure Cut-Off Switch Removal and Installation.
See: Refrigerant Pressure Sensor / Switch/Low Pressure Sensor / Switch/Service and Repair
3. Recover the refrigerant from the refrigerant system. See Refrigerant Recovery.
See: Service and Repair/Refrigerant Recovery
Suction Line Jumper Remove/Install
4. Disconnect the flare nut on the suction line from the threaded fitting on the suction line jumper. Install plugs in, or tape over all of the opened
refrigerant line fittings.
5. If the vehicle is equipped with the optional rear heater-A/C unit, go to Step 6. If not, go to Step 8.
6. Disconnect the flare nut on the underbody plumbing suction line from the threaded fitting on the suction line jumper. Install plugs in, or tape over
all of the opened refrigerant line fittings.
