yesterday i was driving and out of no where there was a sqeaking/ grinding sort of sound coming from my front right tire area. the sound was deacently loud then i got home a short time later, went to drive it about 3 hours later and the sound was gone buut after about 3 or 4 miles it started again then stopped again about 2 or 3 miles later. i only hear the sound while the cars moving, the brakes dont seem to increase its intensity when i apply them and i havent noticed and difference in the way the car drives, what im asking is whats the possible problems and if you know, then a estimate on the price to correct them