Hey guys, my 2008 Fit is making a squealing noise when it's idling and when I'm driving (it's constant). Does anyone know what this noise could be? Car has regular maintenance and the oil level is good. Also, the AC recently stopped working... could be related?

Here is a video of the noise.
Thanks in advance.

 

can be idler or a/c clutch bearing. Remove belt and spin each component to check

 

Sounds like a bearing getting ready to explode. Definitely get it fixed asap. Could be the A/C clutch, but could also be the water pump or any number of other belt driven pulleys and components. If it fails it will take out the belt and leave you stranded.

 

While it may not be exact cause for this case, but when I saw high mileage 08 Fit on local wrecking yard, the original water pump pulley moved very smooth and had no play, while idler pulley bearing was very rough as well as a/c clutch bearing.

 

Our '07 had a bad A/C clutch that was making a similar noise.

 

Thanks everyone!