Brake Booster
The brake booster uses engine vacuum to multiply the force of your foot on the pedal, making braking feel light and easy. When it fails, the pedal gets hard to press and you have to push much harder to stop. We test and replace a faulty booster so your brakes feel responsive and effortless again.
Find a TechnicianCommon causes
- Ruptured internal diaphragm losing vacuum assist
- Vacuum leak from a cracked or disconnected hose
- Failed check valve that holds vacuum in the booster
- Faulty vacuum pump on diesel or turbocharged engines
- Age and wear causing internal seals to break down
Frequently asked questions
Why is my brake pedal suddenly hard to push?
A hard, stiff pedal is the classic sign of a failing brake booster or a loss of engine vacuum. The brakes still work, but you have to press much harder to stop, so it's important to have it checked promptly for your safety.
Is it safe to drive with a bad brake booster?
We don't recommend it. Your car can still stop, but it takes far more pedal effort and longer distances, which is dangerous in an emergency. It's best to have the booster repaired or replaced as soon as you notice the change.
How it works
Describe the issue
Tell us what's going on with your car. Our platform matches you with verified providers who handle this exact problem.
Connect with a provider
Browse verified mobile mechanics and auto service pros near you. Read real reviews and pick the best fit.
Get it fixed
Your provider comes to your location, diagnoses the issue on the spot, and gets you back on the road.