Thumping noises are somewhat common, and often caused by worn, grooved brake rotors. New rotors start out smooth and even, but like many of a vehicle’s parts and components, they eventually wear down over time. When brake pads press onto a rough, uneven surface, your braking and steering will feel rough, as well.
If your vehicle wobbles more than it thumps – and it only occurs intermittently or at certain speeds – your vehicle’s suspension may be the culprit, not the rotors. An auto technician can help you determine the root of your problem and address the issue.