Chrysler 300M 2002 Service Manual page 1662

LH
HVAC HOUSING (Continued)
(12) Remove the rear seat heat duct elbow push
pin fastener.
(13) Disconnect the HVAC harness connector.
(14) Gently pull the HVAC unit housing rearward
from the dash panel, being careful not to spill any
coolant into the passenger compartment.
DISASSEMBLY
(1) Remove the HVAC housing from the vehicle.
(Refer to 24 - HEATING & AIR CONDITIONING/
DISTRIBUTION/HVAC HOUSING - REMOVAL)
(2) Place HVAC housing on a workbench.
(3) Remove the heater core retaining screws. Pull
back on the retaining tabs and remove the heater
core from the housing.
(4) Remove the recirculation door actuator wiring.
Remove the actuator from the recirculation housing.
(Refer to 24 - HEATING & AIR CONDITIONING/
CONTROLS/RECIRCULATION DOOR ACTUATOR -
REMOVAL)
(5) Remove the lower distribution housing.
(6) Remove the mode door actuator. (Refer to 24 -
HEATING & AIR
MODE DOOR ACTUATOR - REMOVAL)
(7) Remove the blend door actuator. (Refer to 24 -
HEATING & AIR
BLEND DOOR ACTUATOR - REMOVAL)
(8) Remove the recirculation housing screws and
clip.
(9) Remove the blower motor wiring at the blower
motor resistor block/power module.
(10) Squeeze the blower motor wiring grommet
and push the grommet through the blower motor
cover.
(11) Remove the blower motor cover.
(12) Remove the blower motor retaining screws
and remove the motor.
(13) Remove the blower motor resistor block/power
module.
(14) Remove the evaporator temperature probe.
(Refer to 24 - HEATING & AIR CONDITIONING/
CONTROLS/EVAPORATOR TEMPERATURE SEN-
SOR - REMOVAL)
(15) Remove the vent door seal from the HVAC
housing.
(16) Remove the evaporator seal from the HVAC
housing.
(17) Remove the upper housing screws and clips.
(18) Separate the upper half of the HVAC housing
from the lower half.
(19) Remove the evaporator assembly from the
lower housing.
(20) Remove the blend door from the lower hous-
ing.
CONDITIONING/CONTROLS/
CONDITIONING/CONTROLS/
(21) Using a flat blade screwdriver, pinch in the
retaining tab at the base of the vent door. Pull up on
door and remove it from the HVAC housing.
(22) Remove the mode door actuating cam.
(23) Remove the screw at defrost door actuating
arm. Remove the defrost door link from the arm.
(24) Remove the defrost door arm from the lower
HVAC housing.
(25) Remove the link and defrost door from the
HVAC housing.
(26) Remove the vent door actuating arm from the
lower HVAC housing.
ASSEMBLY
(1) Install the vent door actuating arm to the
lower HVAC housing.
(2) Install the defrost door link to the defrost door.
(3) Install the defrost door and link into the HVAC
housing.
(4) Install the defrost door actuating arm and
retaining screw to the HVAC housing.
(5) Install the defrost door link to the actuating
arm.
(6) Line up the slots to the pegs on the mode door
cam, and install the mode door cam.
(7) Turn the HVAC housing over and snap in the
vent door to the vent door arm.
(8) Install the blend door in the HVAC housing.
(9) Install the evaporator into the lower HVAC
housing.
(10) Install the upper housing onto the lower hous-
ing.
(11) Install the screws that secure the two housing
halves to each other and tighten to 2.2 N·m (20 in.
lbs.).
(12) Install the evaporator and vent door seals on
the HVAC housing.
(13) Insert the evaporator temperature sensor in
the evaporator. (Refer to 24 - HEATING & AIR CON-
DITIONING/CONTROLS/EVAPORATOR TEMPERA-
TURE SENSOR - INSTALLATION) If the same
evaporator is being used, the new probe must
not go into the same hole (in the evaporator
coil) that the old probe was removed. The evap-
orator is manufactured with three holes for probe
insertion. Insert the probe in the uppermost hole. If a
new evaporator is installed, place the evaporator
probe in the same location as on the previous evapo-
rator.
(14) Install the wiring at the evaporator tempera-
ture probe.
(15) Install the blower motor resistor block/power
module.
(16) Install the blower motor in the HVAC hous-
ing. Install the blower motor mounting screws and
tighten to 2.2 N·m (20 in. lbs.).
DISTRIBUTION 24 - 25