Anyone know what would cause the front pads to vibrate against the rotor and how to remedy?? This isn't a noise like what happens when you engage the brakes and you get that typical brake squeal. This is a noise coming from the front pads vibrating against the rotor when there is no pressure on the front brakes at all. Never seen nor even heard of this. It's somewhat intermittent. And when it starts doing this, I can apply light pressure to the brake lever and of course it goes away because the pads start to engage the rotor. Need to fix this. Anyone got anything?