my passenger front wheel makes a humming almost vibrating while steering left. ideas?

CV axles or wheel bearings. Really both as the cv goes through the bearing, but the joint is what goes bad on the cv but need to change both as the same parts have to be removed anyway. Save on labor cost. If its the cv it will pop or click as it gets worse and the bearing will start to make grinding sounds.

mmmm parking lot/turning out of a street speed (5-15) or onramp speed (30-50ish?). I would guess first, bearing. Are you looking to do this repair yourself or have a shop do it? If shop, I would shop around for price and see if anyone will do a free inspection of said issue. If it's the bearing, it should be inner and outer bearing and a seal each. If you find a mechanic that will let you bring the parts, buy from rockauto.com and then just pay labor. Otherwise, it'll be more expensive. Also have the alignment checked afterward, toe shouldn't be a problem, but camber/caster more likely. Keep us posted :)

Weird.. I never saw your reply when I wrote mine, EC. Good answer up top.

Thanks, Walth.