I have this weird groaning/buzzing noise coming from the front belts (video attached). It sounds like a pulley or maybe PS? I flushed the fluid on the ps a couple weeks ago to try and help but still there. Can’t be heard from in the cabin, a little noisy on startup but can barley be heard once warm with hood closed.

https://youtube.com/shorts/UMGlAyZKg...5fWxAXpNYAfDan

 

The two things I would do are 1, use a stethoscope to try to hear where it’s coming from and 2, remove the belt and try spinning each pulley to see if one is noisy or feels wrong.

 

Sounds like one of the idler pulleys. (easily replaced just get the exact right size, there are a couple). Or power steering pump bearing gone bad. You don't have ACE so it's not that !

 

If you don't have a stethoscope, a 3/8 or so tube or hose can work. Clean end goes in the ear.... Just be super slow and steady poking around a running motor. Mind the fan blade. A short length of metal tubing in the business end aids accurate placement.