2012 Jeep Wrangler JK Factory Service Manual 24 - Heating and Air Conditioning

HOUSING-HVAC

HOUSING-HVAC



NOTE:

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


NOTE:

LHD model with A/C shown in illustrations. RHD and heater-only models similar.


  1. Remove the HVAC housing assembly and place it on a workbench (Refer to 24 - Heating and Air Conditioning/Distribution/HOUSING, HVAC - Removal) .

    2.  
  2. Remove the air inlet housing (2) from the HVAC housing (1) (Refer to 24 - Heating and Air Conditioning/Distribution/HOUSING, HVAC - Removal) .

    3.  
  3. Remove the air distribution housing (3) from the HVAC housing (Refer to 24 - Heating and Air Conditioning/Distribution/HOUSING, HVAC - Removal) .

    4.  
  4. Remove the three screws (1) that secure the blower motor (2) to the bottom of the HVAC housing (3) and remove the blower motor.

    5.  
  5. Remove the two screws (4) that secure the blower motor power module (5) to the back of the HVAC housing and remove the module.

    6.  
  6. Using needle nose pliers (1) , disengage the two retaining tabs (2) that secure the evaporator temperature sensor (3) to the driver side of the HVAC housing (4) and remove the sensor.

    7.  
  7. Remove the A/C expansion valve from the A/C evaporator (Refer to 24 - Heating and Air Conditioning/Plumbing/VALVE, A/C Expansion - Removal) .

    NOTE:

    If the foam seal for the flange is deformed or damaged, it must be replaced.


    8.  
  8. Remove the foam seal (2) from the flange (3) located on the top of the HVAC housing (4).

    9.  
  9. Remove the four screws (1) that secure the flange to the HVAC housing and remove the flange.

    NOTE:

    If the foam insulator for the evaporator is deformed or damaged, it must be replaced.


    10.  
  10. Carefully remove the A/C evaporator (1) and its insulator (2) from the HVAC housing (3).

    NOTE:

    If the foam seal for the condensate drain is deformed or damaged, it must be replaced.


    11.  
  11. If required, remove the foam seal (1) from around the condensate drain located on the bottom of the HVAC housing (2).

    12.  
  12. Remove the metal clips (1) and screws (2) that secure the two halves of the HVAC housing together (4 and 5).

    13.  
  13. Disengage the plastic retaining tabs (4) that secure the two halves of the HVAC housing together and separate the housing.

    14.