Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager. Manual — part 136
BLOWER MOTOR NOISE/VIBRATION DIAGNOSIS
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HEATING AND AIR CONDITIONING
24 - 39
BLOWER MOTOR ELECTRICAL SYSTEM DIAGNOSIS
24 - 40
HEATING AND AIR CONDITIONING
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COMPONENT SERVICE PROCEDURES
INDEX
page
page
Air Distribution Duct
. . . . . . . . . . . . . . . . . . . . . . . 42
Ambient Switch
. . . . . . . . . . . . . . . . . . . . . . . . . . 44
Blower Motor and Wheel Assembly
. . . . . . . . . . . . 46
Blower Motor Wheel
. . . . . . . . . . . . . . . . . . . . . . . 47
Blower Resistor Block
. . . . . . . . . . . . . . . . . . . . . 41
Condensate Drain Tube
. . . . . . . . . . . . . . . . . . . . 49
Condenser Assembly
. . . . . . . . . . . . . . . . . . . . . . 46
Condenser Fan Control Switch—Variable
Displacement Compressor System
. . . . . . . . . . 44
Defroster Ducts/Demister Ducts and Hoses . . . . . . 43
Electronic Cycling Clutch Switch (ECCS)
. . . . . . . 44
Evaporator Coil
. . . . . . . . . . . . . . . . . . . . . . . . . . 47
Expansion Valve
. . . . . . . . . . . . . . . . . . . . . . . . . 45
Filter-Drier Assembly
. . . . . . . . . . . . . . . . . . . . . . 46
Heater A/C Unit Recondition
. . . . . . . . . . . . . . . . . 47
Heater Core
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heater Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Heater-A/C Unit Housing
. . . . . . . . . . . . . . . . . . . 47
Low or Differential Pressure Cut-Off Switch
. . . . . . 45
Temperature Control Cable
. . . . . . . . . . . . . . . . . . 41
Vacuum Actuator—Fresh/Recirc Door
. . . . . . . . . . 42
Vacuum Actuators—Mode Doors
. . . . . . . . . . . . . 42
Water Control Valve
. . . . . . . . . . . . . . . . . . . . . . . 44
TEMPERATURE CONTROL CABLE
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 column
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 mounting 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. 1).
(10) Slip the cable self-adjusting clip from the blend-
air door crank.
(11) Remove the cable from the vehicle.
(12) To remove the self-adjusting clip from cable
(Fig. 1):
(a) Insert a 3/16 inch (4 mm) diameter tool (drill
bit or phillips screw driver shank) 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
lever on the control to the cool side of its travel.
Allowing the self-adjusting clip to slide on the cable,
rotate the blend-air door crank counterclockwise by
hand until it stops.
BLOWER RESISTOR BLOCK
REMOVAL AND INSTALLATION
(1) Open hood.
(2) Locate and remove the wire connector from the
blower resistor block. Block is located at the back of the
engine compartment on the passenger side of the
vehicle (Fig. 2).
Fig. 1 Temperature Control Cable—Typical
Fig. 2 Resistor Block Removal or Installation
COWL
PANEL
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HEATING AND AIR CONDITIONING
24 - 41
(3) Remove resistor block attaching screws and pull
the resistor block from the vehicle.
CAUTION: The resistor block may be hot and could
cause burns.
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 another.
VACUUM ACTUATOR—FRESH/RECIRC DOOR
The Vacuum Actuator for the Fresh/Recirc Door is
located on the passenger side of the heater-A/C hous-
ing.
REMOVAL AND INSTALLATION
(1) Remove heater-A/C control panel. Refer to
Switch and Panel Component Service in Group 8E,
Instrument Panel.
(2) Remove console assembly. Refer to Group 8E,
Instrument Panel.
(3) Remove instrument panel lower steering column
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) Remove vacuum lines from actuator.
(6) Loosen (do not remove) the two actuator attach-
ing nuts (Fig. 3).
(7) Disengage actuator linkage at mode door.
(8) Remove actuator from vehicle.
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
and Gauges.
Heat/Defrost Actuator:
Remove two screws from bracket. Lift actuator up-
ward and pull out (Fig. 4).
Mode Door Actuator:
Remove two screws from bracket (Fig. 5). 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 mount-
ing hole in the mode door. Install two screws in bracket.
Install the instrument panel cover under the steering
column.
AIR DISTRIBUTION DUCT
REMOVAL AND INSTALLATION
(1) Instrument panel assembly must be removed.
Refer to Group 8E, Instrument Panel and Gauges.
Fig. 3 Removing or Installing Fresh/Recirc Vacuum
Actuator
Fig. 4 Removing or Installing Heat/Defrost Vacuum
Actuator Assembly
24 - 42
HEATING AND AIR CONDITIONING
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