Hey guys. I drove to work this morning and my car started making a weird sucking/whirling/high pitch hum noise. The noise isn't consistently on, the noise is on in neutral or in gear, noise doesn't increase when I turn the wheel, any idea on what it could be? I was able to get a video of the noise.

 

link https://youtu.be/feNadLYtOhU

 

Pretty hard to tell from just that video, you didn't open the hood and listen in the engine area?
Did it stop after a few minutes or when the engine got warm?

 

This was all when the engine was warm and I opened the hood but I couldn't spend much time on it since I had to go to work. It sounded like it was coming toward the back of the engine bay. I am thinking maybe a vacuum leak from the intake, ima take a look later though. Just wanted to see if anyone could recognise it or had any other places I should check.