LIQUID LINE
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.
FRONT
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) Remove the screw that secures the front liquid
line block fitting to the inlet of the filter-drier, and
disengage the fitting from the filter-drier (Fig. 74).
Install plugs in, or tape over all of the opened refrig-
erant line fittings.
(4) Disconnect the front liquid line refrigerant line
coupler at the condenser outlet. 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 front liquid line from the engine
compartment.
INSTALLATION
(1) Remove the tape or plugs from the refrigerant
line fittings on the front liquid line and the con-
denser outlet. Connect the front liquid line to the
condenser outlet. See Refrigerant Line Coupler in the
Removal and Installation section of this group for the
procedures.
(2) Remove the tape or plugs from the front liquid
line block fitting and the filter-drier inlet. Install the
front liquid line block fitting to the filter-drier inlet
and secure the connection with a screw. Tighten the
mounting screw to 13.5 N·m (120 in. lbs.).
(3) Connect the battery negative cable.
(4) Evacuate the refrigerant system. See Refriger-
ant System Evacuate in the Service Procedures sec-
tion of this group.
(5) Charge the refrigerant system. See Refrigerant
System Charge in the Service Procedures section of
this group.
REAR
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) Remove the engine air filter housing. Refer to
Group 14 - Fuel System for the procedures.
(4) Remove the nut that secures the ground strap
to the inboard side of the rear liquid line block fit-
ting.
(5) Remove the screw that secures the rear liquid
line block fitting to the outlet of the filter-drier, and
disengage the fitting from the filter-drier. Install
plugs in, or tape over all of the opened refrigerant
line fittings.
(6) Disconnect the suction line from the suction
jumper. See refrigerant line coupler in the removal
and installation section.
(7) If the vehicle is equipped with the optional rear
overhead A/C unit, disconnect the refrigerant line
couplers near the dash panel between the suction
line jumper and the rear liquid line extension and
both of the underbody refrigerant lines. See Refriger-
Fig. 73 High Pressure Cut-Off Switch Remove/Install
1 – MANIFOLD
2 – LOW PRESSURE SERVICE PORT
3 – HIGH PRESSURE CUT-OFF SWITCH
4 – DISCHARGE LINE
5 – SUCTION LINE
24 - 60 HEATING AND AIR CONDITIONING DN
REMOVAL AND INSTALLATION (Continued)
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