warped rotors?

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Originally Posted by crooster

Sometimes uneven brake pad material transfer to the rotor is the cause of pedal pulsations. You can usually sand this off.

Warped rotors are possible but uneven pad transfer is the cause 99% of the time with our cars. You can measure runout to check for true and if still good a thorough rotor cleaning and re-bed of the pads will probably work. Remember that front rotors are not too expensive so don't spend weeks trying to save them. Sometimes new is the simplest solution.