Dude this happened to me about 3 weeks ago my elbow busted and now i got a screach like tick... Exactly where you hear the noise. I changed my tensioner pulley below the alt as it didnt spin so freely i put a dap of lube on it and it remained quiet for about 3 mins or so... I also changed my belt as it was showing some wear and boom its good.... You cant get mad at the guys trying to give you ideas on where to start looking, most of these guys have been there done that maybe twice. Alternator may have gotten some coolant in it to as when your elbow breaks it will leak and then lap a bunch of coolant around your belts and pulleys. Good luck
