High pitched whine ????

[sjarrett71]

Take the belt off and spin your pulleys by hand. Hopefully whatever it is is bad enough you can hear it by just spinning the pulleys. I have used the scredriver to the ear thingy before and diagnosed many water pumps and alternators that way. As said before, just be real careful around the moving parts. You'll want to check the front and back of the alternator as I believe there are bearings in both ends.