Skip the auto shop - Our mechanics make house calls

Q: Brakes going to the floor

asked by on

The brakes were going to the floor no visible leaks so I changed the master cylinder, bleeded the brakes and the brakes are still going to the floor

My car has 176 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, your vehicle brake pedal going to the floor before and after the brake master cylinder replacement, is a safety concern. I recommend not driving your vehicle until, this problem is resolved. Your safety is priority one. Assuming, you followed procedure replacing the brake master cylinder, bench bled, and properly bled the system. It could be, the ABS (anti-lock brake system) electo-hydraulic modulator allowing brake fluid to bypass internally, resulting in the brake pedal going to the floor. I recommend having your vehicle’s brakes(https://www.yourmechanic.com/services/brake-safety-inspection) be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: It's about the break pad assembly kit

Sometimes the brake pad silencer clips need to be adjusted or bent slightly to stay attached to the brake pad before removal. This is normal and due to variations in parts and clips may be made to work on different...

Q: Brake pedal is going to the floor. Ive changed master cylinder and bled system. No help.

Hi there. Knowing the year, make, and model usually helps us with providing helpful advice. However, I believe I may be of help here. Confirm there are no other brake fluid leaks. Check the caliper slide pins if this model...

Q: I have a 2004 Nissan quest. It has been having trouble starting and staying on. I can list what I've tried below!

Hi there. To be completely honest, the hard to start issue could be any or a combination of all the items you've listed above. In most cases, when a car is hard to start, it narrows down to two problems...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.