Durango 4WD V8-5.9L VIN Z (1998)
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. Refer to: Heating and Air Conditioning, Refrigerant
Pressure Sensor/Switch, HVAC, Low Pressure Sensor/Switch, HVAC, Service and Repair, Low Pressure Cut-Out Switch Replacement,
See: Refrigerant Pressure Sensor / Switch/Low Pressure Sensor / Switch/Service and Repair/Low Pressure Cut-Out Switch Replacement
3. Recover the refrigerant from the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Refrigerant Recovery, See:
Service and Repair/Refrigerant Recovery
4. Disconnect the refrigerant line coupler between the suction line and the suction line jumper. See Refrigerant Line Coupler in the Replacement for
the procedures. Install plugs in, or tape over all of the opened refrigerant line fittings.
5. Remove the rear liquid line from the engine compartment. See Liquid Line in the Replacement for the procedures.
6. Slide the plastic retainer that secures the suction line jumper out of the saddle formation at the top of the rear liquid line block fitting. Secure
block, preferably in a vise. Tap the plastic retainer out with a hammer and flat-bladed screwdriver.
7. Remove the suction line jumper from the rear liquid line block fitting.
INSTALLATION
1. Using a new O-ring, install the suction line jumper into the saddle formation at the top of the rear liquid line block fitting.
2. Slide the plastic retainer that secures the suction line jumper into the rear liquid line block fitting.
3. Install the rear liquid line into the engine compartment. See Liquid Line in the Replacement for the procedures.
4. Remove the tape or plugs from the refrigerant line fittings on the suction line and the suction line jumper. Install the suction line to the suction line
jumper. See Refrigerant Line Coupler in the Replacement for the procedures.
5. Install the low pressure cut-off switch to the fitting on the suction line jumper. Refer to: Heating and Air Conditioning, Refrigerant Pressure
Sensor/Switch, HVAC, Low Pressure Sensor/Switch, HVAC, Service and Repair, Low Pressure Cut-Out Switch Replacement, See:
Refrigerant Pressure Sensor / Switch/Low Pressure Sensor / Switch/Service and Repair/Low Pressure Cut-Out Switch Replacement
6. Connect the battery negative cable.
7. Evacuate the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Refrigerant System Evacuate, Evacuating the
A/C System, See: Service and Repair/Refrigerant System Evacuate
8. Charge the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Refrigerant System Charge, A/C System
Charge, See: Service and Repair/Refrigerant System Charge
