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Symptoms of a Bad Brake Booster Because of the prevalence of disc brakes, power-boosted braking systems now come standard on nearly all new automobiles and recent-model used vehicles. Disc brakes are not self-energizing like drum brakes, so they require a power brake booster to keep pedal effort reasonable for all drivers. But like any human-made device, power brake boosters can go bad. Booster Failure The primary symptom of power brake booster failure is a high, hard pedal that requires greater than normal pedal pressure to stop the car. You may also notice that it takes a much longer distance than normal to stop your car The high, hard pedal and longer stopping distance mean you are not getting power boost. Proper Function A properly functioning power brake system should provide power assist on first application of the brakes every time, with normal pedal travel, pedal pressure and stopping distance. However, if your brake pedal is low, spongy, requires pumping or fails un...

How to Remove a Brake Booster From the Brake Pedal in a Tahoe The Chevrolet Tahoe has been popular among soccer moms and big families for years. Over that time, they've become fairly advanced, including features like electronic throttle control and a tighter turning radius. The brake pedal of the car connects to the brake booster at the top of the pedal assembly, and although it's not a difficult process to remove the linkage, getting to it can be a bit complicated. In this case, the project vehicle is a 2003 Chevrolet Tahoe. Things You'll Need Flashlight Flat head screwdriver Instructions Open the door and look underneath the dash with the flashlight, following the brake pedal up from the floor to the linkage at the top of the mount. There is a round bar that comes off of the top of the pedal, with a wired switch and the booster linkage bolted to it. Reach an arm up there with the flat head screwdriver to access the metal clip at the end of the bar. Place th...

How to Replace the Break Booster on a Chevrolet Silverado The Chevy Silverado´s braking system operates with disc brakes, which require the use of power brake boosters. Prior to disc brakes, stopping a truck required much more effort compared to the modern systems that take advantage of a vacuum created by the truck´s engine. Just like any truck part, the brake booster undergoes normal wear and tear and can lose its capacity to assist in braking. When this occurs, it is time to replace the brake booster and regain your truck´s braking ability. Things You'll Need Socket wrench Flashlight Screwdriver Instructions Lift the hood of the truck and locate the master brake cylinder -- it is located on the firewall, opposite of where the brake pedal is in the cabin of the truck. You can identify the master brake cylinder by the brake lines that are attached to it; these brake lines run from the brake linkage through the truck´s firewall and connect the brake booster to the m...