Why do my brakes pulsate when I press the pedal?

Answer by  johnrlenginesaolcom (12)

Depending on the year/make/model of the car there are a few possible causes. The most likely cause is warped or worn brake rotors. This is a metal disc that is squeezed between 2 pads. The rotors should be either replaced or resurfaced.

Answer by  dan (25)

This can happen one of two ways. The first is if your rotors are warped. This will cause a pulsing feeling whille braking. The second reason may just be that your vehicle has anti-lock brakes which are designed to pulsate rather than lock.

Answer by  majivantara (39)

The most common cause of this problem is brake drums being out of round. The drums need to be machined and returned to appropriate roundness. Take it to an auto shop!

Answer by  CarolynOsborne (2804)

You probably have an Anti-lock Brake System (ABS). This system keeps your brakes from locking up in case you are in a skid. With ABS, you do not have to pump the pedal when you are skidding; the brake system does that for you.