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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 731 (Climate Control - F-150 & Mark LT) >> Removal And Installation >> Air Conditioning (A/C) Compressor - 4.2L >> Removal And Installation

Removal And Installation

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: If installing a new air conditioning compressor due to an internal failure of the old unit, carry out the following procedures to remove contamination from the air conditioning system.
  • If A/C flushing equipment is available, carry out flushing of the air conditioning system prior to installing a new air conditioning compressor. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS article.
  • If A/C flushing equipment is not available, carry out filtering of the air conditioning system after a new air conditioning compressor has been installed. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS article.
  • Install a new evaporator core orifice, as directed by the A/C flushing or filtering procedure.
  • Install a new suction accumulator as directed by the A/C flushing or filtering procedure.
NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
NOTE: If installing a new A/C compressor, the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil must be inspected and transferred from the old unit to the new unit if suitable for reuse.
  1. Remove the air cleaner outlet tube. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING article.
  2. If flushing of the air conditioning system has not been carried out, recover the refrigerant. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS article.
  3. Remove the drive belt from the A/C compressor pulley.
  4. Disconnect the clutch field coil electrical connector.
  5. Remove the A/C compressor suction fitting nut and disconnect the fitting.
    • Discard the O-ring seal and gasket seal.
    • To install, tighten to 15 Nm (11 lb-ft).
  6. Remove the A/C compressor discharge fitting nut and disconnect the fitting.
    • Discard the O-ring seal and gasket seal.
    • To install, tighten to 15 Nm (11 lb-ft).
  7. Remove the 3 A/C compressor bolts.
    • To install, tighten to 25 Nm (18 lb-ft).
  8. Remove the A/C compressor.
  9. To install, reverse the removal procedure.
    • If a new A/C compressor is to be installed, the clutch assembly must be transferred from the old unit to the new unit. For additional information, refer to Clutch and Clutch Field Coil  in this article.
    • Install new gasket seals and O-ring seals.
  10. If filtering of the refrigerant system is not to be carried out, evacuate, leak test and charge the refrigerant system. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS article.
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