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Home >> Mitsubishi >> 2008 >> Raider 4WD V6-3.7L >> Repair and Diagnosis >> Heating and Air Conditioning >> Housing Assembly HVAC >> Service and Repair >> Removal and Replacement
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Removal and Replacement

HOUSING - HVAC - REMOVAL

AIR INLET HOUSING

WARNING:
- Refer to the applicable warnings and cautions for this system before performing the following operation. Failure to follow the warnings and cautions could result in possible personal injury or death.
- On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (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 accidental airbag deployment and possible personal injury or death.

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




1. Disconnect and isolate the negative battery cable.
2. Remove the HVAC housing (6) and place it on a workbench.
3. Disconnect the HVAC wire harness (5) from the recirculation door actuator (1) and the blower motor resistor (3).
4. Remove the four screws (4) that secure the air inlet housing to the top of the HVAC housing and remove the air inlet housing.

NOTE: If the foam seal on the air inlet housing is deformed or damaged, it must be replaced.

5. If required, disassemble the air inlet housing.

HVAC HOUSING

WARNING:
- Refer to the applicable warnings and cautions for this system before performing the following operation. Failure to follow the warnings and cautions could result in possible personal injury or death.
- On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (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 accidental airbag deployment and possible personal injury or death.

NOTE: The HVAC housing must be removed from the vehicle and disassembled for service of the heater core, A/C evaporator, mode-air and blend-air doors.




1. Disconnect and isolate the negative battery cable.
2. Recover the refrigerant from the refrigerant system.
3. Drain the engine cooling system.
4. Remove the instrument panel from the passenger compartment.
5. Remove the two bolts (1) that secure the HVAC housing (2) to the passenger compartment side of the dash panel (3).




6. Disconnect the A/C liquid line and the A/C accumulator from the A/C evaporator and install plugs into or caps over the fittings and evaporator tubes.
7. Disconnect the heater hoses from the heater core tubes and install plugs into or caps over the heater core tubes.
8. Remove the three nuts (1) that secure the HVAC housing (2) and the fresh air inlet screen (3) to the engine compartment side of the dash panel (4).
9. Pull the HVAC housing assembly rearward so that the mounting studs and condensate drain tube clear the dash panel and remove the HVAC housing from the passenger compartment.
10. If required, remove the fresh air inlet screen from the dash panel.

HOUSING - HVAC - INSTALLATION

AIR INLET HOUSING

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




1. Position the air inlet housing (2) onto the top of the HVAC housing (6).
2. Install the four screws (4) that secure the air inlet housing to the top of the HVAC housing. Tighten the screws to 2 N.m (17 in. lbs.).
3. Connect the HVAC wire harness (5) to the blower motor resistor (3) and the recirculation door actuator (1).

NOTE: If the foam seal on the air inlet housing is deformed or damaged, the seal must be replaced.

4. Install the HVAC housing.
5. Reconnect the negative battery cable.

HVAC HOUSING

NOTE: The HVAC housing must be removed from the vehicle and disassembled for service of the heater core, A/C evaporator, mode-air and blend-air doors.




1. If removed, install the fresh air screen (3) onto the dash panel (4).
2. Position the HVAC housing (2) into the passenger compartment with the mounting studs and the condensate drain tube in their proper locations in the dash panel.
3. Loosely install the three nuts (1) that secure the HVAC housing to the engine compartment side of the dash panel.




4. Loosely install the two bolts (1) that secure the HVAC housing to the passenger compartment side of the dash panel.
5. Tighten the three nuts that secure the HVAC housing to the engine compartment side of the dash panel to 7 N.m (62 in. lbs.).
6. Tighten the two bolts that secure the HVAC housing to the passenger compartment side of the dash panel to 3 N.m (26 in. lbs.).
7. Install the instrument panel.
8. Remove the previously installed plugs or caps and connect the heater hoses to the heater core tubes.
9. Remove the previously installed plugs or caps and connect the A/C liquid line and the A/C accumulator to the A/C evaporator.
10. Reconnect the negative battery cable.
11. If the heater core is being replaced, flush the cooling system.
12. Refill the engine cooling system.
13. Evacuate the refrigerant system.
14. Charge the refrigerant system.
15. Initiate the Actuator Calibration function using a scan tool.
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