Question for the masses. Going to be installing a new compressor, drier, and expansion valve on the old girl (95 Voyager 3.0L). The old compressor and drier have been completely removed since last summer/fall. My buddy who will be evacuating and recharging the system said I should look online to see if our system can be flushed because some vehicles can and some can't be flushed. So my question is, can our systems be flushed? Thanks in advance.