Hello,
The noise you hear it likely the bearing on the pumps drive shaft. It is a part of the pump and not the pulley.
So, you will have to replace the pump in order to change the bearing.
In order to remove the power steering pump you will have to remove the serpentine belt first.
Also, you will need a power steering pulley puller. It is a specialty tool that can be rented from your local auto parts store.
Here are couple of helpful articles:
https://www.2carpros.com/articles/how-to-replace-a-power-steering-pump
https://www.2carpros.com/articles/remove-reinstall-power-steering-pulley
I have attached diagrams for your reference.
Please let me know of any questions.
Thank you.
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Tuesday, September 28th, 2021 AT 10:25 PM