Belt pulley squeal

[comanche]

I just put a new (used) 3400 in a 99' Alero

Something with the belts and pulleys has a problem; it doesn't just squeal, it shrieks.

It seems to be coming from the power steering pump, but the same power steering pump didn't squeal on the old engine.

-Belt dressing only fixes the problem for 5-10 minutes
-the same belt and PS pump were on the old engine and they didn't squeal
-all the pulleys appear to be lined up
-no codes thrown, everything works
-new upper idler pulley


Any ideas?