1997 Chevy Cavalier squilling in front by pulleys of belts

first thign i would check personally would be that the belt is properly tightened, not beyond the wear limit or glazed up.

i have the same thing. i thing it could be a bearing in either the tensioner or the water pump...if it was the belt, a lite spray of water to quiet it would tell ya that. bearings, well, that's a lil harder because most are sealed for protection. helps to have a thin rod, much like a hanger, stick one end on the area you think it's coming from and the other touch with the palm of your hand...most faulty bearings will give a slight vibration...but you will definitely tell a diff when compared to all the other accessory pullies.

you could also elect to take off the belt and rotate them/spin them by hand see if they have excessive noise and dont turn easily.

also shake them and see if they have play.