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Housing, HVAC: Assembly: Housing-HVAC

WARNING: This page is about a different car, the 2009 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. See Heating and Air Conditioning/Plumbing/OIL, Refrigerant - Standard Procedure . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.
NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. See Heating and Air Conditioning/Plumbing/OIL, Refrigerant - Standard Procedure .
NOTE: If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
NOTE: LHD model shown in illustrations. RHD model similar.
Fig 1: Air Deflector Vane
GC0086395Courtesy of CHRYSLER LLC
  1. If removed, install the foam seal (3) onto the condensate drain located at the bottom of the HVAC housing (2).
  2. Install the air deflector vane (1) into the lower half of the HVAC housing. Make sure the retainers are fully engaged.
    Fig 2: Removing/Installing A/C Evaporator
    GC0086394Courtesy of CHRYSLER LLC
    NOTE: Make sure the rubber seal for the evaporator tubes and tapping block is properly positioned in the HVAC housing opening.
  3. If removed, install the rubber seal (4) over the evaporator tubes and tapping block (5).
    NOTE: Make sure that the foam insulator around the A/C evaporator is properly positioned within the HVAC housing.
  4. Carefully install the A/C evaporator (1) and foam insulator (2) into the lower half of the HVAC housing (3).
    Fig 3: Separating HVAC Housing Halves
    GC0086393Courtesy of CHRYSLER LLC
  5. Install the two halves of the HVAC housing (2 and 6) together and engage the four plastic retaining tabs (4). Make sure the retaining tabs are fully engaged.
    NOTE: Be sure to install the screws that secure the two halves of the HVAC housing together located at the bottom of the HVAC housing.
  6. Install the seven screws (5) and two metal clips (3) that secure the two halves of the HVAC housing together. Tighten the screws to 1.2 N.m (10 in lbs.). Make sure the metal clips are fully engaged to the housing halves.
  7. Install the foam seal (1) onto the front of the two HVAC housing halves.
    Fig 4: Removing/Installing Evaporator Temperature Sensor
    GC0086368Courtesy of CHRYSLER LLC
  8. Install the evaporator temperature sensor (1) into the front of the HVAC housing (2). Make sure the sensor is fully engaged to the housing.
    Fig 5: Blower Motor & Resistor
    GC0086392Courtesy of CHRYSLER LLC
  9. Position the blower motor (4) into the bottom of the HVAC housing (2) and install the three retaining screws (3). Tighten the screws to 1.2 N.m (10 in. lbs.).
  10. Position the blower motor resistor (5) into the HVAC housing and install the two retaining screws (1). Tighten the screws to 1.2 N.m (10 in. lbs.).
    Fig 6: Identifying HVAC Housing - LHD Shown
    GC0086378Courtesy of CHRYSLER LLC
  11. Install the air inlet housing (3) onto the HVAC housing (2). See Heating and Air Conditioning/Distribution/HOUSING, HVAC - Installation .
  12. Install the air distribution housing (1) onto the HVAC housing. See Heating and Air Conditioning/Distribution/HOUSING, HVAC - Installation .
  13. Install the passenger side lower front floor duct. See Heating and Air Conditioning/Distribution/DUCT, Floor Distribution - Installation .
    NOTE: If the heater core is being replaced, flush the cooling system. Refer to Cooling - Standard Procedure .
  14. Install the HVAC housing assembly. See Heating and Air Conditioning/Distribution/HOUSING, HVAC - Installation .
  15. If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. See Heating and Air Conditioning/Plumbing/OIL, Refrigerant - Standard Procedure . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
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