Chrysler Le Baron, Dodge Dynasty, Plymouth Acclaim. Manual — part 197
(2) Locate and disconnect the cable attaching flag
on the bottom of the A/C-heater housing behind the
floor air duct (Fig. 4).
(3) Slip cable self-adjusting clip downward from
the blend-air door crank.
(4) Insert a 3/16 diameter tool (drill bit or phillips
screwdriver shank) into the crank pin access hole
and rotate the clip from the cable.
To install, reverse the preceding operation.
To adjust temperature cable, position the TEMP le-
ver on the control to the cool side of its travel. Al-
lowing the self-adjusting clip to slide on the cable,
rotate the blend-air door crank counterclockwise by
hand until it stops.
TEMPERATURE CONTROL CABLE—AA,AP,AG AND
AJ MODELS
REMOVAL AND INSTALLATION
(1) Remove heater-A/C control panel. Refer to
Switch and Panel Component Service in Group 8E,
Instrument Panel. Disconnect the attaching flag on
the control cable from the heater-A/C control panel.
(2) Remove console assembly. Refer to Group 8E,
Instrument Panel.
(3) Remove instrument panel lower steering col-
umn cover. Refer to Group 8E, Instrument Panel.
(4) Remove the right lower instrument panel/glove
box door assembly. This assembly is clipped to the
upper instrument panel at the right upper side.
(5) A/C equipped vehicles: From under the hood,
disconnect the A/C suction line mounting bracket
from the dash panel (above the expansion valve).
(6) From under the hood, loosen (do not remove)
the four heater-A/C assembly to dash panel mount-
ing nuts.
(7) From inside the vehicle: Remove the vertical
(heater-A/C housing) support bracket (below the
glove box).
(8) Tilt the entire heater-A/C housing assembly
downward to gain access to the temperature cable.
(9) Locate and disconnect the attaching flag on the
control cable at the heater-A/C housing (Fig. 5).
(10) Slip the cable self-adjusting clip from the
blend-air door crank (Fig. 5).
(11) Remove the cable from the vehicle.
(12) To remove the self-adjusting clip from cable
(Fig. 5):
(a) Insert a 4mm (3/16 inch) diameter drill bit
(Fig. 1-Inset) into the door crank access hole. Then
rotate the clip from the cable.
To install, reverse the preceding operation.
To adjust temperature cable: Position the TEMP le-
ver on the control to the cool side of its travel. Al-
lowing the self-adjusting clip to slide on the cable,
rotate the blend-air door crank counterclockwise by
hand until it stops.
BLOWER RESISTOR BLOCK
WARNING: STAY CLEAR OF THE BLOWER MOTOR
AND RESISTOR BLOCK (HOT) DURING THE FOL-
LOWING PROCEDURES.
CAUTION: Do not operate the blower motor with the
resistor block removed from the heater-A/C hous-
ing. Air must move over the hot coils.
CAUTION: Disconnect battery before performing
this operation.
REMOVE AND INSTALL
AJ AND AG BODY
(1) Remove the instrument panel glove box and
door assembly. Refer to Group 8E Instrument Panel.
(2) Remove security and lamp outage modules.
(3) Locate the blower resistor block (Fig. 6). It is
above and to the front of the glove box opening on
the dash panel. Remove the wire connector.
(4) Remove the two attaching screws at the resis-
tor block.
Fig. 4 Temperature Control Cable—Typical
Fig. 5 Temperature Control Cable—Typical
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HEATING AND AIR CONDITIONING
24 - 49
(5) Carefully pull the resistor block straight out
from the cowl plenum opening and remove the resis-
tor block from the vehicle.
To install, reverse the preceding operation. The
coils on the Resistor Block should not be contacting
one another. Before installation, gently separate the
coils (with fingers only) if one coil is contacting an-
other.
AA, AP, AY, AND AC BODY
(1) Raise the hood and remove the windshield
wiper arm assemblies.
(2) Remove
five
cowl-plenum
grille
attaching
screws and carefully lift the grille from the vehicle.
(3) (AA and AP): Locate and remove four air in-
take shield attaching screws and lift the shield from
the vehicle.
(4) (AC and AY): Remove two resistor block termi-
nal cover screws and remove cover.
(5) Disconnect the wire connector from the resistor
block located behind the windshield washer reservoir
(Fig. 7).
(6) Remove two blower resistor block attaching
screws. Then carefully pull the resistor block forward
until the coils clear the plenum and lift it from the
vehicle.
To install, reverse the preceding operation. The
coils on the Resistor Block should not be contacting
one another. Before installation, gently separate the
coils (with fingers only) if one coil is contacting an-
other.
VACUUM ACTUATOR—FRESH/RECIRC DOOR
This actuator is located on the passenger side of
the heater-A/C housing.
REMOVAL AND INSTALLATION
(1) AA, AC or AY Body: Remove silencer cover un-
der the instrument panel (below glove box).
(2) Remove glove box assembly. Refer to Group 8E,
Instrument Panel.
(3) Disconnect vacuum lines.
(4) Locate and remove the two vacuum actuator at-
taching screws.
(5) Disengage the actuator arm linkage from the
door pivot and remove the vacuum actuator (Fig. 8)
from vehicle.
To install, reverse the preceding operation.
AIR DISTRIBUTION DUCT
REMOVAL AND INSTALLATION
AA BODY
On AA Body the instrument panel must be rolled
down to service duct. Refer to Group 8E, Instrument
Panel.
AC, AP, AY BODY
(1) Remove lower instrument panel module. Refer
to Group 8E, Instrument Panel.
(2) Remove distribution duct attaching screws from
under the front edge of the instrument panel (Fig. 9).
(3) Slide duct downward and remove from vehicle.
To install, reverse the preceding operation.
Fig. 6 Blower Resistor Block Location—AJ and AG
Body
Fig. 7 Blower Resistor Block Location—AA, AP, AY
and AC Body
Fig. 8 Recirculating Air Door Vacuum
Actuator—Typical
24 - 50
HEATING AND AIR CONDITIONING
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DEFROSTER DUCT ADAPTER
REMOVAL AND INSTALLATION
AA BODY
On AA body, the instrument panel must be rolled
down to service duct. Refer to Group 8E, Instrument
Panel.
AC, AP, AY BODY
(1) Remove air distribution duct.
(2) Separate the defroster adapter from the heater-
A/C unit and pull the adapter downward and out
from under the instrument panel.
To install, reverse the preceding operation.
DEFROSTER DUCT
REMOVAL AND INSTALLATION
AA, AG, AND AJ BODY
On AA, AG, and AJ Body, the instrument panel
must be rolled down to service duct. Refer to Group
8E, Instrument Panel.
AC, AP, AY BODY
(1) Remove the air distribution duct.
(2) Remove the defroster duct adapter.
(3) Remove the instrument panel top cover. Refer
to Group 8E, Instrument Panel.
(4) Locate and remove defroster duct attaching
screws at the ends of each outlet (Fig. 10).
(5) Allow the defroster duct to drop downward and
remove it from the vehicle.
To install, reverse the preceding operation.
HEATER HOSES
REMOVAL AND INSTALLATION
Review Cooling System Precautions before
proceeding with this operation.
(1) Drain engine cooling system. Refer to Group 7,
Cooling System.
(2) Loosen clamps at each end of hose to be re-
moved (Figs. 11 or 12).
(3) Carefully rotate hose back and forth while tug-
ging slightly away from connector nipple.
CAUTION: When removing hoses from heater core
inlet or outlet nipples DO NOT exert excess pres-
sure. The heater core may become damaged and
leak engine coolant into heater-A/C unit.
Fig. 9 Air Distribution Ducts—Typical
Fig. 10 Removing or Installing Defroster
Duct—Typical
Fig. 11 Heater Hose Routing—2.2 L, 2.5 L
Engines—Typical
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HEATING AND AIR CONDITIONING
24 - 51
To install, reverse the preceding operation.
VACUUM ACTUATORS—MODE DOORS
The Vacuum Actuators for the Mode Doors are lo-
cated on the drivers side of heater/AC housing above
the accelerator pedal.
REMOVAL
(1) Remove the instrument panel cover under the
steering column. Refer to Group 8E, Instrument
Panel.
Heat/Defrost Actuator:
Remove two screws from bracket. Lift actuator up-
ward and pull out (Fig. 13).
Mode Door Actuator:
Remove two screws from bracket (Fig. 14). Rotate
actuator counter-clockwise to unhook from door and
pull to remove.
INSTALLATION
Heat/Defrost Actuator:
Install actuator link through housing and insert in
heat defrost door slot. Push down to hook link to
door. Locate the bracket to the housing and install
two screws.
Mode Door Actuator:
Insert the actuator shaft through the hole in the
housing
and
heat/defrost
door.
Attach
through
mounting hole in the mode door. Install two screws
in bracket.
Install the instrument panel cover under the steer-
ing column.
AIR DISTRIBUTION DUCT
REMOVAL AND INSTALLATION
(1) Instrument panel assembly must be removed.
Refer to Group 8E, Instrument Panel.
(2) After instrument panel has been removed, sep-
arate the defroster/demister ducts from the air distri-
bution duct.
(3) Remove the air distribution duct-to-instrument
panel mounting screws (Fig. 15).
To install, reverse removal procedure.
DEFROSTER DUCTS/DEMISTER DUCTS AND
HOSES
REMOVAL AND INSTALLATION
(1) Instrument panel assembly must be removed.
Refer to Group 8E, Instrument Panel.
(2) After instrument panel has been removed, sep-
arate the defroster/demister ducts from the air distri-
bution duct.
(3) Remove the demister tubes and hoses (Fig. 16).
To install, reverse removal procedure.
Fig. 12 Heater Hose Routing—3.0 L Engine—Typical
Fig. 13 Removing or Installing Heat/Defrost Vacuum
Actuator Assembly
Fig. 14 Mode Door Vacuum Actuators
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HEATING AND AIR CONDITIONING
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