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What is a common symptom of brake rotor trouble?

April 26, 2017Brake common rotor symptom

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What is a common symptom of brake rotor trouble?

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Pedal shudder when braking. The cause may be too much lateral (sideways) run out and/or variation in rotor thickness. Run out occurs when the rotor wobbles as it spins. This can be caused by run out in the hub, run out in the rotor, rust or dirt between the rotor and hub, or uneven torque of the lugs that distort the rotor and hub (which is why lug nuts should always be tightened to specifications with a torque wrench, not a impact gun.