How to Change a Brake Booster
How to Change a Brake Booster The vacuum type brake booster on your vehicle multiplies the force you apply to the brake pedal to slow or stop the car. Engine vacuum acts on a diaphragm inside the booster, pushing a rod into the master cylinder to create the necessary pressure in the brake system. This booster diaphragm may develop punctures and other related mechanical failures after years of service. A failing booster may hinder your ability to brake making necessary to change the unit. Things You'll Need Nose pliers Ratchet and socket Ratchet extension Slip joint pliers Wrench New cotter pin Removing the Old Brake Booster Park your car in a safe place with enough room to work around the front and driver side of the vehicle. Locate the booster push rod connected to the brake pedal. Remove the cotter pin securing the booster push rod pin to the brake pedal using a pair of nose pliers. Release the push rod pin from the brake pedal and sli...