Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 2344

5. Remove the tape or plugs from the heater core

tubes and heater core ports.

6. Lubricate new rubber O-ring seals with clean

engine coolant and install them onto the heater
core tube fittings. Use only the specified O-ring as
they are made of a special material for the engine
cooling system.

7. Install the heater core tubes (2) onto the heater

core (3).

8. Install the two retaining clamps (1) that secure the

heater core tubes to the heater core. Make sure
that the clamps are installed correctly and securely.

9. Install the heater core tubes (4) and the flange (2)

to the front of the HVAC housing (3).

10. Install the two screws (1) that secure the flange to

the HVAC housing. Tighten the screws to 2.2 N·m
(20 in. lbs.).

11. Connect the HVAC wire harness (1) to the mode

door actuator (2) and the blend door actuator (3)
located on the driver side of the air distribution
housing (4).

12. If equipped with dual zone heating-A/C, connect

the HVAC wire harness to the blend door actuator
(5) located on the passenger side of the air distri-
bution housing.

13. Install the floor console duct (Refer to 24 - HEAT-

ING

&

AIR

CONDITIONING/DISTRIBUTION/

DUCT-FLOOR CONSOLE - INSTALLATION).

14. Install the defroster ducts (Refer to 24 - HEATING

&

AIR

CONDITIONING/DISTRIBUTION/DUCT-

DEFROSTER - INSTALLATION).

15. Install the instrument panel (Refer to 23 - BODY/

INSTRUMENT

PANEL/INSTRUMENT

PANEL

ASSEMBLY - INSTALLATION).

16. Reconnect the negative battery cable.

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17. Refill the engine cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE - COOLING SYSTEM

REFILL).

HOUSING-AIR INLET

NOTE: The air inlet housing must be removed from HVAC housing and disassembled for service of the
recirculation-air door.

NOTE: LHD model shown. RHD model similar.

1. Position the air inlet housing (6) onto the HVAC

housing (7).

CAUTION: Make sure that the recirculation-air
door pivot shaft is properly seated in the pivot
seats located on the top of the HVAC housing.

2. Install the five screws (5) that secure the air inlet

housing to the HVAC housing. Tighten the screws
to 2.2 N·m (20 in. lbs.).

3. Inspect the foam seal (3). If the seal is deformed or

damaged, it must be replaced.

4. Connect the HVAC wire harness (1) to the recircu-

lation door actuator (2).

5. Install the HVAC housing assembly (Refer to 24 -

HEATING & AIR CONDITIONING/DISTRIBUTION/
HOUSING-HVAC - HOUSING-HVAC ASSEMBLY - INSTALLATION)

6. Reconnect the negative battery cable.

HOUSING-HVAC ASSEMBLY

NOTE: The HVAC housing must be removed from the vehicle and disassembled for service of the A/C evap-
orator.

NOTE: LHD model shown in illustrations. RHD model similar.

1. Position the HVAC housing (2) into the passenger

compartment with the mounting studs in their
proper locations in the dash panel (5) and the con-
densate drain tube into the grommet (4) on the
floor panel (3).

2. Install the two nuts (1) that secure the HVAC hous-

ing to the passenger compartment side of the dash
panel. Tighten the nuts to 3 N·m (26 in. lbs.).

3. Install the defroster ducts (Refer to 24 - HEATING

& AIR CONDITIONING/DISTRIBUTION/DUCT-DE-
FROSTER - INSTALLATION).

4. Connect the floor distribution ducts (Refer to 24 -

HEATING & AIR CONDITIONING/DISTRIBUTION -
FRONT/DUCT-FLOOR DISTRIBUTION - INSTAL-
LATION).

5. Connect the floor console duct (Refer to 24 -

HEATING & AIR CONDITIONING/DISTRIBUTION/
DUCT-FLOOR CONSOLE - INSTALLATION).

6. Install the instrument panel (Refer to 23 - BODY/INSTRUMENT PANEL/INSTRUMENT PANEL ASSEMBLY -

INSTALLATION).

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7. Install the three nuts (1 and 3) that secure the

HVAC housing to the engine compartment side of
the dash panel (2). Tighten the nuts to 7 N·m (62
in. lbs.).

8. Connect the heater hoses to the heater core tubes.

9. Connect the A/C suction line and A/C liquid line to

the A/C evaporator (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING /LINE-A/C LIQUID -
INSTALLATION).

10. Install the fresh air inlet housing to the engine

compartment side of the dash panel. (Refer to 24
- HEATING & AIR CONDITIONING/DISTRIBU-
TION/HOUSING-HVAC - HOUSING-FRESH AIR
INLET - INSTALLATION).

11. Reconnect the negative battery cable.

12. If the heater core is being replaced, flush the

cooling system (Refer to 7 - COOLING - STAN-
DARD

PROCEDURE

-

COOLING

SYSTEM

CLEANING/REVERSE FLUSHING).

13. Refill the engine cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE - COOLING SYSTEM

REFILL).

14. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD

PROCEDURE - REFRIGERANT SYSTEM EVACUATE).

15. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-

CEDURE - REFRIGERANT SYSTEM CHARGE).

HOUSING-FRESH AIR INLET

NOTE: The fresh air inlet housing must be removed from the vehicle for removal of the HVAC housing.

NOTE: LHD model shown in illustrations. RHD model similar.

1. Position the fresh air inlet housing (4) and water

separator (2) or particulate air filter (6) and filter
housing (5) (depending on application) as an
assembly onto the engine compartment side of the
dash panel (3).

2. Install the two nuts (1) that secure the fresh air

inlet housing and water separator or filter housing
(depending on application) to the dash panel.
Tighten the nuts to 7 N·m (62 in. lbs.).

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3. Position the insulator (4) into its installed location

and install the push-pin retainer (5) that secures
the insulator to the front of the fresh air inlet hous-
ing (2).

4. Install the push-pin retainer (1) that secures the

fresh air inlet housing to the right inner fender (6).

5. Reach under the fresh air inlet housing and install

the wire harness retainer (3) into the bottom of the
air inlet housing, if equipped.

6. Position the powertrain control module (PCM) or

the engine control module (ECM) (2) (depending
on engine application) into its installed location.

7. Position the strut support (3) into the engine com-

partment and loosely install the two bolts (1) that
secure the strut support and the ECM/PCM to the
passenger side strut tower (6).

8. On LHD models, install the purge solenoid (5) onto

its mounting bracket located on the right strut
tower.

9. Engage the retainer that secures the wire harness

(4) to the bottom of the strut support.

10. Engage the wiper motor (5) to the bracket (4)

located on the strut support (2).

11. Position the strut support to the driver side strut

tower and loosely install the two bolts (1) that
secure the support to the tower.

12. Tighten all four bolts that secure the strut support

to 38 N·m (28 ft. lbs.).

13. Install the cowl top panel onto the dash panel

(Refer to 23 - BODY/EXTERIOR/PANEL-COWL
TOP - INSTALLATION).

14. Reconnect the negative battery cable.

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