Minute amount of motion. IE: very tiny. Take your fingers and rub them together so they barely move. Steel on steel, that much motion can make it ring like a bell.
The brake pads and calipers are designed to float a bit so that they can move freely when you apply the brakes. They can rub together and squeak or chirp.
That is why I asked if it stops or changes if you apply the brakes.
Bearing wise I mean the bearings in an idle pulley or tension-er, steering pump or other belt drive item. But if you have to be moving then it likely is not this because these would make noise as long as the engine was running, even stopped at a light or in the driveway.
Saturday, September 9th, 2017 AT 4:06 PM