Extreme squeaking noise when started, belt area. on 2002 Dodge Grand Caravan

Thought belt was loose, but it's tight. Autozone recommended spraying the pulleys with oil. Did not work. Noise is high pitch squeal.

Asked by for the 2002 Dodge Grand Caravan
Replace belt and tensioner after cleaning that oil off !!! Never spray or put anything on a belt i don't care what anybody tells you!
Be sure to check all the componets the belt runs on and replace as needed.
Thanks alot, appreciate it!
You are welcom, that should take care of the problem. The tensioners give some problem on this van.
Replace belt even if it is new!