Whining noise
 

Okay I need some advice, cause I've about lost it at this point.I have a 2009 honda civic dx 1.8 sedan. So I've got a whining noise coming from the belt drive.Im 100% sure it is coming from the belt drive region because once I took the belt off the noise stopped completely. Alternator is less than a year old, and just today I replaced the belt tensioner(with new belt) and I also replaced the A/C clutch because the pulley was seizing up and causing my belt to smoke while I was driving.Good new A/C works now,bad news is the noise is still there and I'm at a loss at this point. Anyone that has had any experience with this issue that could steer me in the right direction would be greatly appreciated.thank you!

Re: Whining noise
 

Are you sure you haven't just overtightened the belt(s)?

Re: Whining noise
 

​​​​​​ Automatic tensioner on these ones,
Check the tensioner pulley and idler pulley, cheap and easy to replace if it's one of them

Re: Whining noise
 

Thanks for the correction

Re: Whining noise
 

Take the belt back off and spin each pulley by hand. Which one makes noise?

Re: Whining noise
 

When the noise originated i did that exact same thing before I had bought any of the parts.The a/c clutch pulley was grinding real bad if you spun it by hand but that was the only one.It almost sounds like the noise a power steering pump makes when its going bad when you turn the car but it doesn't make that sound when I turn the car.