Grand Cherokee 2WD Limited V8-4.7L (2002)
FOLLOWING OPERATION.
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. A good rule for the flexible hose refrigerant lines is to keep the radius of all bends at least ten times the diameter of
the hose. In addition, the flexible hose refrigerant lines should be routed so they are at least 80 millimeters (3 inches) from the exhaust manifold.
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. It is a good practice to inspect all flexible hose refrigerant lines at least
once a year to make sure they are in good condition and properly routed.
1. Remove the tape or plugs from the suction line block fitting and the manifold on the compressor. Install the suction line block fitting to the
manifold on the compressor. Tighten the mounting bolt to 25.4 Nm (225 in. lbs.).
2. Remove the tape or plugs from the refrigerant line fittings on the evaporator outlet and the suction line. Slide the suction line connection block
over the liquid line and evaporator stud. Tighten the retaining nut to 28 Nm (250 in. lbs.).
3. Connect the battery negative cable.
4. Evacuate the refrigerant system.
5. Charge the refrigerant system.
