Alternator squealing

[tim]

You might have it tight enough but the belt may be shot. If it is glazed over or saturated with powersteering fluid you might just be due for a new belt. You dont want to over tighten the belt cause that could cause a squeak too and possible put unneeded load on the alt bearings.Also, are you sure it is the alt belt or could it be the PS belt? Try turning the wheel when it is squealing to see if it gets louder or quieter.