(7) Install the A/C-Heater housing retaining fas-
teners. Torque the fasteners to 20 N´m (177 in. lbs.).
(8) Install the heater core coolant supply hoses on
the heater core (Fig. 5).
(9) Install the expansion valve (Fig. 6), gasket and
retaining bolts. Torque the bolts to 11 N´m (97 in.
lbs.).
(10) Connect the electrical connector on the bottom
of the expansion valve (Fig. 6).
(11) Install the refrigerant lines and retaining bolt
(Fig. 6). Torque the bolt to 23 N´m (203 in. lbs.).
CAUTION: Be certain the refrigerant line sealing
O-rings are well lubricated and free of tears.
(12) Install the instrument panel. Refer to Group
8E, Instrument Panel and Systems for the procedure.
(13) Charge the refrigerant system.
(14) Fill the cooling system. Refer to Group 7,
Cooling System for the procedure.
(15) Connect the negative battery cable.
HEATER CORE ± R. H. D.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M ± PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, ORINSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
WARNING: DO NOT OPEN THE RADIATOR DRAIN-
COCK OR DISCONNECT COOLANT HOSES WHEN
THE SYSTEM IS HOT AND UNDER PRESSURE.
SERIOUS BURNS FROM COOLANT CAN OCCUR.
(1) Disconnect the negative battery cable.
(2) Drain the cooling system. Refer to Group 7,
Cooling System for the procedure.
(3) Evacuate the refrigerant system.
(4) Remove the instrument panel. Refer to Group
8E, Instrument Panel and Systems for the procedure.
(5) Remove the refrigerant line retaining bolt from
the expansion valve (Fig. 7). Remove the refrigerant
lines from the expansion valve.
(6) Disconnect the electrical connector from the
bottom of the expansion valve (Fig. 7).
(7) Remove the expansion valve retaining bolts
and remove the valve from the vehicle.
Fig. 5 Heater Core Coolant Supply Lines
1 ± HEATER CORE COOLANT LINE SUPPORT BRACKETS
BOLTS
2 ± HEATER CORE COOLANT SUPPLY LINES
Fig. 6 Refrigerant Lines at Bulkhead
1 ± EXPANSION VALVE
2 ± REFRIGERANT LINE MANIFOLD RETAINING BOLT
3 ± BATTERY
4 ± LOW PRESSURE CUTOUT SWITCH ELECTRICAL
CONNECTOR
PLHEATING AND AIR CONDITIONING 24 - 3
REMOVAL AND INSTALLATION (Continued)
MANUFACTURER PLATE
The Manufacturer Plate (Fig. 4) is located in the
engine compartment on the right side of the radiator
closure panel crossmember adjacent. The plate con-
tains five lines of information:
1. Vehicle Identification Number (VIN)
2. Gross Vehicle Mass (GVM)
3. Gross Train Mass (GTM)
4. Gross Front Axle Rating (GFAR)
5. Gross Rear Axle Rating (GRAR)
Fig. 4 Manufacturer Plate
PLINTRODUCTION 3
GENERAL INFORMATION (Continued)
