Q: The brakes in my car are acting weird. All of a sudden, they feel like they have no power.

asked by on

All of a sudden, the brakes in my car feel powerless. I had to step all the way to the floor to come to a complete stop. It feels very weird to drive and made me feel on edge just to go a very short distance. I just got my car used last week. My dad is really into cars and did an inspection and did not find anything wrong, so I bought the car. The dealership was also supposed to have done an inspection, but I'm not sure how thorough it was. I am taking it to the dealership to get checked out in a few days, but I'm a bit worried. My car was completely fine this morning and now the brakes make me feel like I am unable to drive my car. Don't want to have a bunch of money on my new car go down the drain. Is this fixable? Is it going to cost me a lot of money? Even if it does get fixed, it is something I have to be worried about again in the future? Any help would be greatly appreciated!!

My car has 46920 miles.
My car has an automatic transmission.

It sounds like you may have a problem with the brakes developing the proper hydraulic pressure. One of the most common causes of the brake pedal going to the floor is a loss of brake fluid. Generally, this is easy to detect due to the fact that there is usually brake fluid leaking on the ground underneath the vehicle. The brake booster is a mechanism that uses vacuum pressure to take the force being applied to the brake pedal and amplify it. If the booster is bad, then the full amount of force needed to activate the master cylinder and pressurize the brake fluid isn’t going to be there.

Another possible cause for this may be a failing master cylinder. The master cylinder is where the brake fluid is compressed creating the necessary hydraulic pressure the braking system needs in order for it to stop your vehicle. When the master cylinder fails, this may cause a loss of hydraulic pressure which will usually also cause the brake pedal to go to the floor. I would recommend having an expert from YourMechanic come to your location to diagnose your braking system.

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
  1. Home
  2. Questions
  3. The brakes in my car are acting weird. All of a sudden, they feel like they have no power.

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

Q: my car gear is stuck in drive but the gear shift goes to park car is in acc postion wont crank or swicth to off to remove the key

Hi there, thanks for writing in. It sounds like you most likely have a broken shift cable, or a failed shifter assembly. A failure of either part would allow you to move the shifter handle to park, while the transmission...

Q: I replaced the thermostat in my car but it still gets hot and the coolant keeps evaporating the fan kicks on I see no leaks what c

Claimed by Jeff Engstrom

Q: Code P0303 cylinder 3 misfire

The symptoms you describe along with the blinking Check Engine Light and P0303 trouble code definitely tell us that you have a misfire in cylinder number 3. Your engine uses a coil on plug system. This means each individual...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...