How Long Does a Power Brake Booster Last?

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When you press the brake pedal, your car slows down and eventually stops. Most of us put little more thought into it. We know that our brake pads need to be replaced periodically, and we’ll probably need to have our rotors resurfaced at some point, but we put little additional thought into how the system works. Your brakes are actually a very complex system that requires a number of different parts to work correctly.

Your car’s power brake booster does pretty much what the name implies. It sits at the back of the master cylinder and is responsible for boosting the power from the pedal. It actually makes it easier to stop your car by reducing the amount of pressure needed to work the brakes. If you’ve ever driving a car without a power braking system, you know just how hard it can be to slow down and stop.

Your power brake booster is in use any and every time you put your foot on the brake pedal. That means it sees a lot of use. Over time, it’s exposed to wear and tear, as well as threats from other sources – leaking brake fluid from a failing master cylinder, for instance. Brake fluid is caustic, and it will eventually break down the seals that allow the brake booster to work.

If your brake booster fails, you will still have normal stopping capabilities, but it will be much harder to work the brake pedal. Slowing down and stopping will require more time and longer distances. It’s definitely not a safe situation to be in, so it’s important that you know a few signs to watch for that indicate your brake power booster is beginning to fail. These include:

  • Brake pedal is very hard/stiff
  • Your car has less stopping power
  • Pressing the brake pedal creates a hissing noise
  • Brake pedal does not return from the depressed position

Note that a failing or failed power brake booster will not make your brake pedal soft or mushy. That actually indicates low brake fluid, a failed master cylinder or another problem with the braking system. If you suspect your power brake booster is on its last legs, a certified mechanic can diagnose and fix the power brake booster to help get you safely back on the road.


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YourMechanic Brake Pad Replacement Service

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Rating Summary
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Rigoberto

9 years of experience
706 reviews
Rigoberto
9 years of experience
Chevrolet Equinox - Brake Pads Replacement (Rear) - Niles, Illinois
Rigo was great! He got there early, finished the job early, left everything clean. He changed my rear pads and rotors. The original quoted time was 90 minutes, he was done in about 60. He knows what he is doing and I am recommending him to all my friends and coworkers.
Mercedes-Benz C250 - Brake Pads Replacement (Front, Rear) - Chicago, Illinois
Rigo is a maverick hands down. Don’t take your car for work elsewhere. Especially great at Mercedes—this guy knows his profession! I will be using him for everything related to my car going forward.

Arturo

25 years of experience
35 reviews
Arturo
25 years of experience
Kia Forte - Brake Pads Replacement (Front) - San Diego, California
ARTURO is great! very professional , fast, replaced my front brake pads and oil an filter change. everything now works and works well. Brakes have much improved stopping power and engine is smooth and quiet.Arturo is also kind and thoughtful. "Your mechanic" is very fortunate to have Arturo Lopez represent your company. I enthusiastically recommend him and "Your mechanic> as a fine operation Best regards to the Team Peter Marto
Nissan Maxima - Brake Pads Replacement (Front, Rear) - San Diego, California
Arturo was prompt and completed my brake repair, including new rotors in a very efficient manner. I am very pleased with the quality of the work and the parts and will definitely look to have him service our other car in the near future.

Scott

32 years of experience
345 reviews
Scott
32 years of experience
Lexus IS250 - Brake Pads Replacement (Rear) - Denver, Colorado
Always on time, speedy, professional, and pleasant to interact with. The work is always consistent and we'll done. I can't reccomend Scott highly enough!

Michael

10 years of experience
15 reviews
Michael
10 years of experience
Nissan Sentra - Brake Pads Replacement (Front) - Conyers, Georgia
He was promptly on time and got the job done efficiently in a timely manner. I really appreciate the rapid respone on getting the job done! I would most definitely use this service again.

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