My a/c stopped working this weekend and I wasn't able to get hold of a mechanic. I kept driving on it than Saturday night when i started my car I heard an awful metal on metal noise. There were sparks coming from the a/c compressor clutch assembly. After further examining my car in the daylight it looks like the clutch assembly is bent up/blown apart. I was hoping someone could tell me what could have caused this(did my compressor seize up and take the pulley with it?). Also is it safe to drive to the mechanic? I can post pics if need be.