For some reason my AC compressor is getting stuck. It happens when it is just begining to get cold. It makes a loud squilling sound everytime it happens, the belt is slipping...what could be wrong?

Thanks

 

You may have blown some of the refrigerant and a lot of the oil charge from the system. I'd get a guage set on it to see what's happening. It's also possible that the clutch is slipping from dirt, grease, rust, etcetera, but the system pressures would be good to know.