strategiccreative

I have a 1997 Altima GXE. I replaced the alternator, but it made squealing noises occasionally (not often), usually when I started the car. I took it to my mechanic and he said I installed the alternator and tightened the belt properly, but the remanufactured alternator I bought had a bad bearing.
The next day, my son was driving the car, still with the bad alternator. I thought it would be OK to drive for one day. He said it made squealing noises and he had difficulty steering the car. When I opened the hood, the belt had come partly off the alternator.
So I exchanged the alternator for another one and installed it again. This time, the car doesn't make squealing noises when I start the car, but when I turn the wheel - even slightly - in either direction, it squeals. The noise stops when I stop turning the wheel. The noise seems to be coming from the general area of the alternator.

I would be grateful for any suggestions. TIA.

David