CAUTION: To prevent refrigerant system contamination and possible failure of the new A/C compressor, carry out the following procedures.

1. Remove and discard the A/C evaporator core orifice.

NOTE: A dirty A/C evaporator core orifice or a condenser to evaporator tube containing black refrigerant oil and particles indicates that the A/C compressor has failed and a new A/C compressor must be installed.

2. Remove the A/C compressor.

• Drain the residual refrigerant oil from the A/C compressor and measure the volume for correct system oil matching.

3. Remove the suction accumulator/drier.

• Drain the residual refrigerant oil from the suction accumulator/drier and measure the volume for correct oil system matching.

NOTE: The suction accumulator/drier and A/C evaporator core orifice cannot be cleaned and a new A/C evaporator core orifice must be installed.

4. Carry out an A/C system flushing or filtering procedure:

• If A/C system flushing equipment is available, clean the A/C evaporator core and the A/C condenser core by flushing.
• If A/C system flushing equipment is not available, carry out a system filtering procedure.

NOTE: System flushing is the preferred method of cleaning. However, if flushing equipment is not available, carry out system filtering.

5. Install a new A/C compressor.
6. Install the new suction accumulator/drier.
7. Install the new A/C evaporator core orifice.
8. Correctly oil match the system.
9. Perform the Refrigerant Evacuation and Charging procedures.