How to Buy a Good Quality Power Brake Booster

When you apply your brakes, you’ll feel a pressure – and that feeling is the brake booster doing its job. If you’re not feeling that extra little bit of pressure when you apply your brakes, it’s a good bet that your brake booster is not operating at peak efficiency and needs to be repaired or replaced.

The job of the brake booster starts as soon as you begin to put pressure on the pedal. There are two chambers inside the brake booster that are divided by a diaphragm. Stepping on the gas pedal clears the air from the chambers, vacuum-sucking everything out depending on how hard you’re stepping on the brakes. The harder your foot depresses the brake pedal, the more air is forced out of the chamber.

There are two main types of brake boosters: vacuum and hydraulic. Here are a few pointers for choosing the right brake booster for your vehicle:

  • Hydraulic: Hydraulic brake boosters are generally found in diesel-powered engines and consist of a steering pump that is filled with a hydraulic liquid which is stored in an accumulator. Air pressure is released when you step on the brake pedal, resulting in an excellent level of braking force of up to 2,000 psi. The downside is that this type of booster can decrease horsepower because it uses a fair amount of electric energy to function.

  • Vacuum: Vacuum brake boosters work on air pressure; stepping on the brake pedal forces air out of the diaphragm. The benefit of utilizing a vacuum is that if your vehicle’s engine stalls, the brakes will still work even though you will have to push harder. Check to make sure the units are vacuum-tested to ensure that their performance will be reliable.

Check to see which type of power brake booster your vehicle uses before you attempt to replace it. Keeping your power brake booster in good working order is an important part of your vehicle maintenance.

YourMechanic supplies top-quality power brake boosters to our certified mobile technicians. We can also install a power brake booster that you've purchased. Click here to get a quote and more information on power brake booster replacement.


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Recent Power Brake Booster Repair reviews

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(48)

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Peter

43 years of experience
1321 reviews
Peter
43 years of experience
Dodge Charger V6-3.5L - Power Brake Booster - Laveen, Arizona
What an easy transaction from booking online to working with Peter, I would not change a thing. Peter was an hour early, spent a few minutes talking with me about the cars problem and got busy working. He had to run to the auto parts store and let me know he was leaving. He finished up in less than the scheduled time and left everything clean. I found my new mechanic!
Volvo S60 - Power Brake Booster - Glendale, Arizona
Peter was very professional and did a great job fixing my car. I highly recommend him.

Allen

36 years of experience
471 reviews
Allen
36 years of experience
Toyota Camry L4-2.4L - Power Brake Booster - Orlando, Florida
Best service I've had in years!! Great mechanic!! Would recommend him to anyone. Left my drive way clean. Thank you Allen!
Ford Edge - Power Brake Booster - Oviedo, Florida
Allen arrived early, went over the repair as it was occurring and cleaned up after he was done.

Xavier

16 years of experience
101 reviews
Xavier
16 years of experience
Nissan Pathfinder V8-5.6L - Power Brake Booster - Jacksonville, Florida
Xavier went above and beyond to find us a brake booster that was compatible, even going to the Nissan dealership to get it. And he charged us the promised price even though the part was more expensive than expected. He spend time explaining and asking the right questions to be sure it was what we needed. Highly recommended!

Wayne

31 years of experience
102 reviews
Wayne
31 years of experience
Ford Edge V6-3.5L - Power Brake Booster - Collingswood, New Jersey
Wayne was great. He was twenty minutes early and made sure I was completely satisfied before he wrapped things up.

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