i am having the same prob. my freon was leaking last summer. the clutch and everything worked. i left it alone for the winter and now am tryinng to fix it. i replaced the valvecores. that is where it was leaking.i put a can in it and the clutch finally kicked in for about 3-4 min. then it stoped. while it was working the clutch was clanging like it needed oil. it hasnt kicked in since. also the fan doesnt kick in at all.