Suction Line Jumper - Dodge 2000 DURANGO Service Manual

DN
REMOVAL AND INSTALLATION (Continued)
High pressures are produced in the refrigerant sys-
tem when the air conditioning compressor is operat-
ing. 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.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE GENERAL INFORMATION SECTION
NEAR THE FRONT OF THIS GROUP BEFORE PER-
FORMING THE FOLLOWING OPERATION.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Recover the refrigerant from the refrigerant
system. See Refrigerant Recovery in the Service Pro-
cedures section of this group.
(3) Unplug the wire harness connector from the
high pressure cut-off switch.
(4) Disconnect the refrigerant line couplers at the
condenser and the suction line jumper. See Refrigerant
Line Coupler in the Removal and Installation section
of this group for the procedures. Install plugs in, or
tape over all of the opened refrigerant line fittings.
(5) Remove the nut that secures the refrigerant
line support bracket near the compressor.
(6) Remove the screw that secures the refrigerant
line manifold to the compressor (Fig. 84). Install
plugs in, or tape over all of the opened refrigerant
line fittings.
(7) Remove the suction and discharge line assem-
bly from the vehicle.
INSTALLATION
(1) Remove the tape or plugs from all of the refrig-
erant line fittings. Install the refrigerant line cou-
plers to the condenser and the suction line jumper.
See Refrigerant Line Coupler in the Removal and
Installation section of this group for the procedures.
(2) Install the refrigerant line manifold to the com-
pressor. Tighten the mounting screw to 22 N·m (200
in. lbs.).
(3) Install the nut that secures the refrigerant line
support bracket near the compressor.
(4) Plug in the wire harness connector to the high
pressure cut-off switch.
(5) Connect the battery negative cable.
(6) Evacuate the refrigerant system. See Refriger-
ant System Evacuate in the Service Procedures sec-
tion of this group.
(7) Charge the refrigerant system. See Refrigerant
System Charge in the Service Procedures section of
this group.
HEATING AND AIR CONDITIONING
Fig. 84 Suction and Discharge Line Remove/Install
1 – SUCTION AND DISCHARGE LINE ASSEMBLY
2 – EXPANSION VALVE
3 – LINE CLIP
4 – LOW PRESSURE SERVICE PORT
5 – HIGH PRESSURE CUT-OFF SWITCH
6 – CONDENSER

SUCTION LINE JUMPER

Any kinks or sharp bends in the refrigerant plumb-
ing will reduce the capacity of the entire air condi-
tioning system. Kinks and sharp bends reduce the
flow of refrigerant in the system. High pressures are
produced in the refrigerant system when the air con-
ditioning compressor is operating. Extreme care must
be exercised to make sure that each of the refriger-
ant system connections is pressure-tight and leak
free.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE GENERAL INFORMATION SECTION
NEAR THE FRONT OF THIS GROUP BEFORE PER-
FORMING 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 Pres-
sure Cut-Off Switch in the Removal and Installation
section of this group for the procedures.
(3) Recover the refrigerant from the refrigerant
system. See Refrigerant Recovery in the Service Pro-
cedures section of this group.
(4) Disconnect the refrigerant line coupler between
the suction line and the suction line jumper. See
Refrigerant Line Coupler in the Removal and Instal-
lation section of this group for the procedures. Install
plugs in, or tape over all of the opened refrigerant
line fittings.
24 - 67