I had the "BLACK DEATH" with a motorcraft FS10 compressor.  That requires absolute immaculate and precision in cleaning and flushing.  This is the only way to do it because it uses high pressure air to propel the flush into the system (hose, condenser etc) at high speed, and forces the junk out.  It also dries it so that solvent does not damage the oil or refrigerant.  In my case there were millions of small particles of teflon, (aka black death) and had I not flushed it, I would nave had plugged up orifice tubes every week or so never ending.  This will solve that if you are very careful and immaculate.

Good luck.

PS: I used acetone, 91% isopropyl alcohol, and AC flush.  You don't want to use anything with water, or anything that dries oily or takes along time to dry.  Use approved flush or as I mentioned, alcohol /acetone.  Good luck.
I had the "BLACK DEATH" with a motorcraft FS10 compressor. That requires absolute immaculate and precision in cleaning and flushing. This is the only way to do it because it uses high pressure air to propel the flush into the system (hose, condenser etc) at high speed, and forces the junk out. It also dries it so that solvent does not damage the oil or refrigerant. In my case there were millions of small particles of teflon, (aka black death) and had I not flushed it, I would nave had plugged up orifice tubes every week or so never ending. This will solve that if you are very careful and immaculate. Good luck. PS: I used acetone, 91% isopropyl alcohol, and AC flush. You don't want to use anything with water, or anything that dries oily or takes along time to dry. Use approved flush or as I mentioned, alcohol /acetone. Good luck.