What Happens When Brake Pads Wear Out? One tell-tale sign that your brake pads have reached the end of their useful life is a squealing sound when you brake. Depending on how worn down the pads are, applying the brakes may be met with a metal-on-metal sound as the rotors are no lo...
In vehicles with drum brakes, out-of-round drums can cause pedal pulsation and vibration when the brakes are applied. A mechanic can measure the drums to see if they are out of specification and also check for scoring and other signs of damage. Like disc brake rotors, brake drums can be...