Weird noise when idling
On my way to work today and noticed when I'm at a stop there's a weird noise coming from the engine bay. It sounds like a wonky horn. It only occurs during a part of the idling cycle so it'll start then stop.
It's really hard to describe but i've never heard it before and never heard of anyone else having this problem. I did notice it was coming from the back of the engine bay.
Any thoughts?


