Ok so here's the question I have a 97 caravan 3.3 the belt started squealing about a week ago replaced the tensioner pulley idler pulley power steering and water pump and belt (yes it all needed done) van ran quiet for about a day then started squealing when you pressed the gas now it is continues what else could be wrong every thing is running fine and working properly but the stupid squeal has me worried

 

Since nobody else chimed in - i would unplug the alternator an go for test drive. Might bring in a trouble code that may or may not reset itself. Others might disagree.

 

you said you replaced the pwr steering pump?? if so, its probably the pulley slightly out of alignment with the other pulleys, this will cause belt squeal until the pulley is re aligned..

 

If everything else checks out try installing a new belt. I always use the Goodyear Gatorback belts and have never had one of them squeal..ever.
The changed the name of them and now are called Continental Elite. In my opinion they are the best belts out there. Got one on the Caravan and 2 on my Corvette.