Tacoma Blower Motor

My 2011 Tacoma only has 26,000 miles but my blower motor was making a clicking sound (like a card in a bicycle wheel). I know this is a common issue so I bought a new one on eBay. Bad move on my part. The eBay one was still making a small chirping sound. I got a refund and decided to buy one from O’reilly’s because they have a lifetime warranty. I replaced the eBay one with the oreilly’s one and I can still hear a slight sound, like a small humming sound. Not sure if I am just hypersensitive now to the sound the lower motor is making but has anyone replaced their blower motor and still heard a sound from the new one? The Oreilly's one is definitely quieter than my original one and the eBay one.

 

https://www.tacomaworld.com/threads/blower-motor-squeek-chirp-on-low-fix.28355/