So I've got a pretty common problem... There's a chirping sound coming from somewhere around my serpentine belt, but I'm not sure where. I try to listen as closely as I can, but I don't like putting my head that close to a running engine.
So I was wondering... what tricks to you guys use to find noises? I've heard of things like holding a rubber hose up to your ear, spraying WD40 in strategic places, using a stethoscope... What works and what doesn't?