Dodge Nitro. Manual — part 749

Fig. 74: Screw, Plastic Retaining Tabs, Air Inlet Housing & HVAC Housing
Courtesy of CHRYSLER LLC

1. Remove the HVAC housing assembly and place it on a workbench. See REMOVAL.

2. Remove the screw (1) that helps secure the rear of the air inlet housing (3) to the top of the HVAC

housing (4).

3. Carefully pull the rear of the air inlet housing upward to release the inlet housing from the top of the

HVAC housing and disengage the inlet housing from the two plastic retaining tabs (2) located at the front
of the HVAC housing and remove the inlet housing.

4. If required, disassemble the air inlet housing. See DISASSEMBLY.

HOUSING-HVAC

NOTE:

Typical housing shown. RHD model similar.

WARNING:

Disable the airbag system before attempting any steering wheel, steering
column, or instrument panel component diagnosis or service. Disconnect
and isolate the battery negative (ground) cable, then wait two minutes for
the airbag system capacitor to discharge before performing further
diagnosis or service. This is the only sure way to disable the airbag
system. Failure to take the proper precautions could result in an
accidental airbag deployment and possible personal injury or death.

WARNING:

Refer to the applicable warnings and cautions for this system before
performing the following operation. See WARNING, and CAUTION. Failure
to follow the warnings and cautions could result in possible personal
injury or death.

NOTE:

The HVAC housing must be removed from the vehicle and disassembled for
service of the A/C evaporator.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 75: Suction Line Assembly, Nuts, A/C Expansion Valve, Heater Hoses & Dash Panel
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the negative battery cable.

2. Recover the refrigerant from the refrigerant system. See REFRIGERANT SYSTEM RECOVERY.

3. Partially drain the engine cooling system (refer to DRAINING ).

4. Remove the nut (2) that secures the A/C liquid and suction line assembly (1) to the A/C expansion valve

(3).

5. Disconnect the A/C liquid and suction line assembly from the A/C expansion valve and remove and

discard the O-ring seals.

6. Install plugs in, or tape over the opened refrigerant line fittings and the expansion valve ports.

7. Disconnect the heater hoses (4) from the heater core tubes. Install plugs in, or tape over the opened heater

core tubes to prevent coolant spillage during housing removal.

8. Remove the nut (6) that secures the HVAC housing assembly to the engine compartment side of the dash

panel (5).

NOTE:

LHD model shown in illustrations. RHD model similar.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 76: Removing/Installing Nuts That Secure HVAC Housing Assembly To Passenger Side Of
Dash Panel
Courtesy of CHRYSLER LLC

9. Remove the instrument panel. Refer to REMOVAL .

10. Remove the rear floor duct. See REMOVAL.

11. Remove the two nuts (1) that secure the HVAC housing assembly (2) to the passenger side of the dash

panel (3).

12. Pull the HVAC housing assembly rearward and remove the housing from the passenger compartment.

DISASSEMBLY

HOUSING-AIR DISTRIBUTION

NOTE:

Use care to ensure that the interior is covered in case of loss of residual
fluids from the heater and evaporator cores.

WARNING:

The heater core tubes are not serviced separately from the heater core.
The heater core tubes should not be repositioned, loosened or removed
from the heater core. Failure to follow this warning could result in a
coolant leak and possible personal injury or death.

NOTE:

The air distribution housing must be removed from the HVAC housing and
disassembled for service of the heater core and the mode-air and blend-air
doors.

NOTE:

LHD model shown in illustrations. RHD model similar.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro

Fig. 77: HVAC Housing Assembly
Courtesy of CHRYSLER LLC

1. Remove the HVAC housing assembly and place it on a workbench. See REMOVAL.

2. Remove the air distribution housing (4) from the HVAC housing. See REMOVAL.

3. Remove the screws (3) that secure the mode door actuator (2) and the blend door actuator (6) to the

actuator mounting bracket (5) located on the driver side of the air distribution housing and remove the
actuators.

4. Remove the three screws (1) that secure the actuator mounting bracket to the air distribution housing and

remove the bracket.

5. Remove the two screws (8) that secure the driver side front floor duct (7) to the air distribution housing

and remove the duct

Fig. 78: Removing/Installing Defrost Door Lever/Gear Assembly, Mode Door Cam, Panel Door
Gear, Blend Door Gear, Blend Door Lever And Blend Door Cam From Driver Side Of Air
Distribution Housing
Courtesy of CHRYSLER LLC

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Service Information - Nitro