I’ve owned a 2003 Jeep liberty with 190000 miles for a week or two. The AC, which worked great when I bought it started turning off sometimes.
When it does work, it works very well. When it stops it makes a grinding sound, and the clutch pulley will turn very slowly.
I’m thinking it’s the AC clutch itself, not the compressor? But I’m not sure, and maybe that’s wishful thinking.