Q: Breaks don't work without a lot of pressure, and is puttering when it is on

asked by on February 07, 2017

Breaks don't work without a lot of pressure, and is puttering when it is on

My car has 156000 miles.
My car has an automatic transmission.

If unusual effort is required to depress the brake pedal, to get the vehicle to stop, that is often due to a fault in the brake booster or the vacuum supply and check valve in the booster circuit. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a brake booster/system diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Rattling sound under the car.

Hi there. If you have a flex plate or a flywheel on your vehicle, the nose could be a loose bolt causing the rattling noise as the engine is running. If the noise lessens out as the engine is revved...

Brake caliper piston doesn't retract after brake pad replacement.

Hi there. If you cannot retract the caliper pistons when replacing the brake pads then you may have a master cylinder failure that is holding pressure in the braking system. If you have already replaced the pads and put everything...

loud hum coming from the front tires when driving on highway

Hello. The brake caliper hanging up can cause the noise you are hearing. If the caliper is causing the brake pads to drag, this will occur. It can also be caused by a bearing failing, which will cause the noise...

Related articles

What Is Brake Dust?
It's It's time to wash the car, but when you get to the wheels they are covered by a hard to remove gray dust. Even after you clean it off, it comes back quickly. Welcome to the world of brake...
How to Replace a Vacuum Brake Booster
The vacuum brake booster generates extra force for car brakes. If your car is hard to stop or wants to shut off, replace your brake booster.
How Do I Know If I Need New Brake Pads?
Car brakes squeak when the pads are worn and need to be replaced. Replace your car brake pads every 35,000 miles to maintain safe braking performance.