Ford 4L3Z-19703-AB Compressor Assembly

If you are replacing the compressor due to internal damage, you must also replace the accumulator and the orifice tube. To remove the compressor, first have the air conditioning system discharged by a dealer service department or by an automotive air conditioning shop. Then, remove the Serpentine Belt(s), and the lower splash shield, if equipped. On 2010 and earlier models, remove the air duct between the air cleaner housing and the throttle body. Raise the front of the vehicle and secure it on jackstands. Disconnect the electrical connector from the compressor clutch field coil. Remove the small brackets mounted to the compressor mounting fasteners. Disconnect the compressor inlet and outlet line manifold from the compressor. Remove and discard the old O-rings. Remove the compressor mounting fasteners and carefully remove the compressor. For V8 models, disconnect the compressor inlet and outlet line manifold from the compressor. Remove and discard the old O-rings. On 2010 and earlier models, remove the two brackets that secure the power steering line in front of the steering gear. Disconnect the crankshaft position sensor (CKP) electrical connector and position the harness aside. Disconnect the electrical connector from the compressor clutch field coil. Remove the wiring harness from the compressor mounting fasteners. Remove the compressor mounting fasteners and the compressor. If a new compressor is being installed, follow the directions with the compressor regarding the draining of excess oil prior to installation. The clutch may have to be transferred from the original compressor to the replacement. Before reconnecting the inlet and outlet lines to the compressor, replace all manifold O-rings and lubricate them with the appropriate refrigerant oil. Installation is otherwise the reverse of removal. Tighten the compressor line manifold and mounting fasteners to the torque. Replace the accumulator and the orifice tube if necessary. Have the system evacuated, recharged, and leak tested by the shop that discharged it.