Compressor HVAC: Service and Repair

REMOVAL

CAUTION: When installing a new A/C compressor due to an internal failure of the old unit, you must 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.
^ If A/C flushing equipment is not available, carry out filtering of the air conditioning system.
^ Install a new evaporator core orifice.
^ Install a new suction accumulator.

NOTE: Replacement of the 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.

1. Perform the Refrigerant Discharging and Recovery Procedure.







2. Position the air cleaner outlet tube aside.
1 Loosen the clamp.
2 Disconnect the crankcase ventilation tube.
3 Position the air cleaner outlet tube aside.
3. Remove the accessory drive belt from the A/C compressor pulley.







4. Disconnect the electrical connector.







5. Remove the clamp nut on the compressor manifold and tube assembly.







6. Loosen the bolt and disconnect the compressor manifold and tube assembly from the A/C compressor.







7. Remove the bolts and the A/C compressor.
^ Discard the O-ring seals.

INSTALLATION
1. To install, reverse the removal procedure.
^ If a new A/C compressor is to be installed, the A/C compressor clutch field coil and the A/C clutch plate must be transferred from the old unit.
^ Lubricate the refrigerant system with the correct amount of clean PAG oil or equivalent. See: Refrigerant Oil Addition.
^ Install new O-ring seals lubricated in clean PAG oil or equivalent.
2. Evacuate, leak test, and charge the refrigerant system.