I replaced the pads and rotors and now there is a thumping/grinding noise that only occurs when I am not braking and not accelerating. So coasting. The speed of the noise changes depending on how fast I am coasting. It is not a solid noise either, it fluctuates. I do not feel anything abnormal in the brake pedal, I just hear the noise. It's a 2002 ES if that provides any needed info.