Hi i have a 1999 chrysler voyager 3.3l petrol. When it is running and you accelerate its sqeals. We have replaced all bearings and pulleys. Replaced waterpump and alernator. When u start it its quiet but when u rev it up she squeals bad. Any solution wud be much appreciated.

 

Welcome to the forum. You may be able to find out more about your minivan on the model specific Chrysler Voyager and Town & Country forum page.
Have you replaced the automatic tensioner itself, or just the pulley on the end of it? I've seen the spring tension unit in them weaken and allow for insufficient belt tension that would allow "squealing".