98 dodge van squeaking from engine

98 dodge conversion van has a squealing from engine when engine is revved and still heard lower at idle. i have replaced the belt and the tensioner but it still squeals...its annoying. anywhere else i should look?

Could be the bearing for the alternator or the idler pulley (if equipped).

Could be the water pump as well. Mine did that before it seized up and needed to be replaced. What a job. Took several hours. I have a DIY write up on another Dodge Ram Van forum thread.