How to Replace a Brake Booster?


A Brake Booster is a critical component of many braking systems. It magnifies the slowing or stopping force of the existing brake system, making it more powerful and more effective. To have a brake booster go out basically equates to having the entire brake system go out; as the remainder of the brake system is designed to have the booster in place. Replacing the booster isn't a difficult matter; if you can change your brake pads and bleed your brakes, you can change the booster. The brake booster isn't usually an expensive part either, typically around one hundred dollars. Here you will find the information needed on how to chance a brake booster.

Step 1 - Locate the Brake Booster

The Brake Booster is located adjacent to the master cylinder. There will be 4 mounting screws protruding through the booster. The booster is also attached to the brake pedal in the interior of the car. This is where you will start work in replacing the brake booster.

Step 2 - Remove the Brake Booster

Start by locating the booster rod that goes through the firewall and is attached to the brake pedal on the interior of the car. Typically, there is a cotter pin that secures the rod to the pedal, but there may also be nuts. When removing any fasteners in the course of this job, make sure to retain the nuts, cotter pins, and various other fasteners as the new brake booster will not come with replacement fasteners.

Remove the fasteners, whether it is a cotter pin or nuts. Slide the rod off the brake pedal. Disconnect the vacuum brake line that connects to the booster. In the engine compartment, there are four bolts securing the booster to the master cylinder and firewall. Loosen and remove these nuts. Remove the nuts (there are usually 2 in addition to the 4 that have already been removed) that secure the brake booster to the master cylinder. Wiggle the brake booster away from the master cylinder. There is a seal between the two. You will need to keep this as the new part does not generally come with another one. Remove the brake booster.

Step 3 - Install the New Brake Booster

Set the new brake booster on the four mounting screws. Tighten the nuts on the bolts to the master cylinder. Insert the push rod through the firewall. Start these by hand so that the threads are not ruined. Reattach the vacuum hose, then the nuts to the 4 mounting screws. Reattach the push rod to the brake pedal by whatever means it was originally secured with, whether by cotter pin or by bolts.

Step 4 - Bleed the Brakes

You will need to bleed the brakes after replacing the brake booster.

In Conclusion:

FIVER Auto Parts Co.,Ltd is a professional auto parts supplier, which specializing in design, research & development, manufacturing and distributing auto power brake boosters(servo), Air master, Brake Chamber, Clutch booster. We extend our auto parts sales network to more than 20 countries.To guarantee quality, we own manufacturing facility with advanced production and testing equipment. We precisely follow ISO/TS16949 quality management system guidelines in all processes of R&D, manufacturing, quality control, and sales. We use 100% online checking for our auto brake & transmission parts. With the above mentioned measures, we provide our customers with safe, reliable, traceable auto brake & transmission parts and services.



Read Also: Best Points to Get a Quality Power Brake Booster
Location: China

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