There seems to be a high-pitched whining sound whenever I accelerate, both while driving and if I rev in neutral. It just started in the past few days. Tranny fluid is fine (filter/fluid changed at 80k or so, 110k now). Power steering fluid is fine, and it doesn't sound like that one. I've had one of those go bad before. Anyone have an idea? If I can't figure out I'm bringing it to my mech for diagnosis.