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Air Conditioning and Heater Assembly: Removal

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refrigerant Compressor Oil (Mineral Oil) F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system O-rings seals only and should not be added to R-134a refrigerant systems as an A/C compressor lubricant. PAG Refrigerant Compressor Oil F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.
  1. Recover the refrigerant. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .
  2. Drain the engine cooling system. For additional information, refer to ENGINE COOLING .
  3. Disconnect the heater hoses (18472).
    Fig 1: Disconnecting Heater Hoses
    G03890169Courtesy of FORD MOTOR CO.
  4. Disconnect the refrigerant line spring lock couplings.
    • Discard the O-ring seals.
      Fig 2: Disconnecting Refrigerant Line Spring Lock Couplings
      G03890170Courtesy of FORD MOTOR CO.
  5. If equipped, remove the LH quarter trim panel. For additional information, refer to INTERIOR TRIM AND ORNAMENTATION .
  6. Remove the auxiliary plenum chamber (18471).
    1. Remove the screw.
    2. Remove the auxiliary plenum chamber.
      Fig 3: Removing Auxiliary Plenum Chamber
      G03890171Courtesy of FORD MOTOR CO.
    7. NOTE: Do not spill any remaining coolant or refrigerant oil while removing the air conditioning and heater assembly.
  7. Remove the air conditioning and heater assembly.
    1. Remove the screws.
    2. Remove the air conditioning and heater assembly.
      Fig 4: Removing Air Conditioning And Heater Assembly
      G03890172Courtesy of FORD MOTOR CO.
  8. To install, reverse the removal procedure.
    • Lubricate the coolant hoses using plain water, if needed.
    • Install new O-ring seals lubricated in clean mineral oil.
    • Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .
  9. Evacuate, leak test and charge the refrigerant system. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .
  10. Fill the engine cooling system. For additional information, refer to ENGINE COOLING .
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