Pulley rattling noise

How do I fix a pulley rattling noise it’s squeals a lot was gona get it checked but wanted to know what you guys knew about it or if u guys had any past experiences with replacing anything?

 

More info is needed. Which pulley? Idlers are pretty easy to replace. Lots of how-to’s on this site for them and the AC compressor clutch pulley too.

 

Hope this helps, not my video but exact same sound from exact same spot
https://m.youtube.com/watch?v=UI_hJ2Zva80

 

Sure sounds like a worn-out bearing to me. At least that's what my AC idler pulley bearing sounded like.

 

In the video the rattle stops when the AC compressor clutch disengages. Does yours do that?

 

Yea

 

https://m.youtube.com/watch?v=2yFx7ZEbe1k Sounds like this too

 

There you have it. Still a chance it could be an idler pulley but my money is on the AC compressor clutch pulley bearing. Is there any play in the clutch pulley? can you wiggle it by hand? There are a bunch of threads and videos here and YouTube that will show you what you need to do to replace either just the bearing or the entire clutch assembly if you’re considering doing this yourself. The hardest part is access and the snap ring.