Squealing Engine!

I have a squealing sound coming from my pully and serpentine belt system. I changed the belt, it stopped squealing for a day and then continued but even worse. I checked all my pulleys and most seem alright with very little play in the idler pulleys. But one of the Idler pulleys (I believe 'No.1') is stiff and doesn't spin freely. Could this possibly be causing my squealing sound?

 

Short answer, yes.

My pulleys basically started going out within a few months of each other. The bearings aren't very resistant to water ingress and mine sounded like an empty power steering pump before I changed the first one. It's an easy fix.

 

Yes
Welcome to TacomaWorld

 

Yes, you’re onto something there.

Welcome aboard!

 

And one more Yes.

 

another yes, change all idlers

 

Saw a serpentine belt sitting in the road, today

 

Yeah?

Did you die?

 

I said a prayer for it. Edit: it looked like a 6 rib

 

How many miles on it? Just curious.

 

I'm not sure what has been replaced before as I got it less than a year ago, but she has nearly 230,000 miles on her.