Legacy Zexel Air Conditioning

If you receive a Customer complaint of a slight "chirp" or "squeak" when the compressor is engaged and also during A/C cycling", do not replace the compressor. Verify proper belt tension and A/C system operation using the applicable service manual. If the A/C system is not used for a period of time, the compressor and clutch assembly may require a break-in procedure to be performed. This procedure can be found in Service Bulletin 10-57-90, Dated 05-29-90, titled "A/C Compressor Inspections". As the customer uses the A/C or defrost modes. the chirp" or "squeak" will diminish. Also, the red clutch dust (rust like substance) is normal and will accumulate during normal usage. Do not replace the compressor or clutch for these conditions.