Evaporator Coil; Fixed Orifice Tube; Heater-A/C Control - Jeep cherokee 2000 Service Manual

XJ
REMOVAL AND INSTALLATION (Continued)
Fig. 35 Floor Duct and Console Rear Duct Remove/
1 – FLOOR CONSOLE
2 – SCREW
3 – FLOOR DUCT AND ADAPTER
4 – CONSOLE REAR DUCT

EVAPORATOR COIL

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Remove and disassemble the heater-A/C hous-
ing. See Heater-A/C Housing in this group for the
procedures.
(2) Lift the evaporator coil unit out of the lower
half of the heater-A/C housing (Fig. 36).
(3) Reverse the removal procedures to install. Be
certain that the evaporator foam insulator wrap and
rubber tube seal are reinstalled.
NOTE: If the evaporator is replaced, add 60 millili-
ters (2 fluid ounces) of refrigerant oil to the refrig-
erant system. Use only refrigerant oil of the type
recommended for the compressor in the vehicle.

FIXED ORIFICE TUBE

The fixed orifice tube is located in the liquid line
(Left-Hand Drive) or the liquid line jumper (Right-
Install
GROUP 8M - PASSIVE
STEERING COLUMN,
HEATING AND AIR CONDITIONING
Fig. 36 Evaporator Coil Remove/Install
1 – EVAPORATOR COIL
2 – TUBE SEAL
3 – CONDENSATE DRAIN TUBE
4 – FOAM INSULATOR WRAP
Hand Drive) near the condenser. The orifice has filter
screens on the inlet and outlet ends of the tube body.
If the fixed orifice tube is faulty or plugged, the liq-
uid line unit or liquid line jumper unit must be
OR replaced. See Liquid Line in this group for the ser-
vice procedures.

HEATER-A/C CONTROL

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Roll down the glove box from the instrument
panel. Refer to Glove Box in Group 8E - Instrument
Panel Systems for the procedures.
(3) Reach through the instrument panel glove box
opening to access and unplug the two halves of the
heater-A/C vacuum harness connector.
TO GROUP 8M -
STEERING COLUMN,
24 - 35
PASSIVE
OR