Symptoms of a Bad or Failing Power Brake Booster

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Cost of Replacing a Bad or Failing Power Brake Booster

If you notice the brake pedal is difficult to push, causes the engine to stall, or takes longer to stop the car, the power brake booster is failing. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Power Brake Booster Repair. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2008 GMC Savana 2500 $350 $258.86 $91.00 12% $398.61
2010 Buick Enclave $233 $120.86 $112.00 20% $292.86
2012 Hyundai Genesis $360 $156.86 $203.00 23% $468.61
2004 Lincoln Town Car $192 $107.66 $84.00 19% $236.66
2013 Acura ILX $519 $386.06 $133.00 12% $590.31
2013 Jaguar XFR-S $643 $272.36 $371.00 23% $842.11
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How to Diagnose a Bad or Failing Power Brake Booster?

power brake booster

The purpose of a brake booster is provide power assistance to the braking system, meaning you do not have to put a lot of force on the brakes for them to actually engage. The brake booster is located between the brake pedal and master cylinder, and uses a vacuum to overcome the fluid pressure in the braking system. If your brakes are not working properly, the vehicle should not be driven. The brake booster is an essential part of the braking system, so keep an eye out for the following symptoms so you can have them repaired right away:

1. Hard pedal

The primary indicator that the brake booster is going bad or failing is a brake pedal that is extremely difficult to push. This may be a gradual issue or go get harder all of a sudden. In addition, the brake pedal will be much higher than normal. As soon as you notice your brake pedal is hard to engage, contact a professional mechanic to have your brake booster replaced. It is critical that brake booster faults are repaired quickly as the car is not safe to drive with a failed brake booster.

2. Longer stopping distance

Along with a hard brake pedal, you may notice it takes the vehicle longer to actually stop. This is because you are not getting the actual power boost needed to properly stop the vehicle. A longer stopping distance can be hazardous in all types of weather because it can make your car unpredictable. This issue should be looked at as soon as you notice it by a mechanic.

3. Engine stalls when brakes are applied

When the brake booster is failing it can draw excess vacuum from the engine. This occurs when the diaphragm inside the brake booster fails and allows air to bypass the seal. The brakes are then pressed, the engine feels like it will stall, and the idle can drop. In addition to the decreased brake performance, a stalling engine can cause serious issues.

4. Test the booster

Since most vehicles use a vacuum system, the brake booster can be tested at your home. With the engine off, pump the brakes several times, about five or six times is sufficient. This depletes the stores vacuum. Turn the engine on while pushing down lightly on the brake pedal. If your brake booster is working normally, the pedal will fall away a little bit but then become firm. If your brake booster is not working correctly, then nothing will happen, or the brake pedal will push back against your foot, once the engine starts. This could be a sign of a brake booster problem or an issue with the vacuum hose.

If you notice the brake pedal is difficult to push, higher than normal, and your vehicle takes longer to stop, have a mechanic inspect it to be safe on the road. If needed, the mechanics will replace your brake booster in a timely manner so you can safely drive your vehicle again. YourMechanic makes getting repairs to your power brake booster easy by coming to your home or office to diagnose or fix issues. Technicians are also available for any questions that may arise.

brake system

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YourMechanic Power Brake Booster Repair Service

Average Rating

4.9/5

Number of Reviews

48

Rating Summary
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Chris

19 years of experience
1126 reviews
Chris
19 years of experience
Chris was on time, courteous, friendly and got the job done in less time then was quoted. 100%, I will be calling him again the next time my car needs work. I am very satisfied with yourmechanic
2007 FORD EDGE - POWER BRAKE BOOSTER - LAKE FOREST, CALIFORNIA

Peter

40 years of experience
972 reviews
Peter
40 years of experience
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!
2010 DODGE CHARGER - POWER BRAKE BOOSTER - LAVEEN, ARIZONA

Joel

18 years of experience
501 reviews
Joel
18 years of experience
Joel was on time and very professional. This was my first time using your service and I will recommend your business to others.
2002 MAZDA TRIBUTE - POWER BRAKE BOOSTER - JACKSONVILLE, FLORIDA

Allen

33 years of experience
329 reviews
Allen
33 years of experience
Best service I've had in years!! Great mechanic!! Would recommend him to anyone. Left my drive way clean. Thank you Allen!
2008 TOYOTA CAMRY - POWER BRAKE BOOSTER - ORLANDO, FLORIDA

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