My 93 Aerstar has 170,000 miles. Today when I switched on the Air Conditioning I heard a loud squeal from the engine compartment and soon smelled burning rubber. Later when I had a friend switch the AC on and off while I observed the compressor, I could see the plate initially move in to engage then quickly disengage. Increasing RPMs caused a loud squeal and the burning rubber smell again. Does this sound like the clutch itself has gone bad, or some other problem (bearings?) in the compressor?
Assuming it is the clutch, how difficult is it to replace? Can it be done without pulling the compressor? I read somewhere that special tools are required for Ford AC clutch replacement....are those still available for loan at AutoZone? Also, given its age, would I be better off in the long run buying a remanufactured compressor and clutch, changing it myslf and then having a pro charge the system?