INSTALLATION
(1) Engage the slotted holes in the left end of rear
overhead A/C unit mounting bracket with the loos-
ened screws in the left roof rail.
(2) Support the right end of the rear overhead A/C
unit while installing the two screws that secure the
mounting bracket on the right end of the unit to the
right roof rail. Tighten all of the mounting screws to
11.9 N·m (105 in. lbs.).
(3) Plug in the rear overhead A/C unit wire har-
ness connector located at the left side of the unit.
(4) Connect the B-pillar drain hoses to the wye fit-
tings on each side of the rear overhead A/C unit.
(5) Remove the tape or plugs from block fittings at
the top of the B-pillar refrigerant line unit, and from
the fittings on the rear overhead A/C unit. Install the
B-pillar refrigerant line block fittings over the one
stud on the rear overhead A/C unit. Install the bolt
holding the suction line, and secure the connections
with the mounting nuts. Tighten the mounting nuts
to 11.3 N·m (100 in. lbs.).
(6) Reinstall the headliner in the passenger com-
partment of the vehicle. Refer to Group 23 - Body for
the procedures.
(7) Connect the battery negative cable.
(8) Evacuate the refrigerant system. See Refriger-
ant System Evacuate in the Service Procedures sec-
tion of this group.
(9) Charge the refrigerant system. See Refrigerant
System Charge in the Service Procedures section of
this group.
Fig. 80 Rear Overhead A/C Unit Refrigerant Line
Remove/Install
1 – B-PILLAR SUCTION LINE
2 – B-PILLAR LIQUID LINE
3 – OVERHEAD AIR CONDITIONING UNIT
4 – NUT
5 – STUD
6 – BOLT
7 – NUT
Fig. 81 Rear Overhead A/C Drain Hose Remove/
Install
1 – REAR OVERHEAD A/C UNIT
2 – WYE FITTING
3 – CLIP
4 – GROMMET
5 – DRAIN HOSE
Fig. 82 Rear Overhead A/C Unit Remove/Install
1 – ROOF PANEL
2 – SCREWS
3 – REAR OVERHEAD A/C UNIT
4 – SCREWS
DN HEATING AND AIR CONDITIONING 24 - 65
REMOVAL AND INSTALLATION (Continued)
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