Skip the auto shop - Our mechanics make house calls

Q: When i hit a bump my brake peddle goes all the way to the ground and my car doesnt brake when it happens

asked by on

it happened three times

My car has 114706 miles.
My car has an automatic transmission.

A: This is a serious safety issue if it happen...

This is a serious safety issue if it happens to occur at an inopportune time, like during a panic stop on a bumpy road. It sounds like a hydraulic issue, perhaps within the master cylinder. Your entire braking system should be evaluated and YourMechanic can assist you with that. The Mechanic will first seek to determine if this is a known issue with your model year and if any Technical Service Bulletins address the issue. If not, there is a sequence of likely causes to run though. Consider having a certified technician come to your home or office to inspect your braking system as well as make any necessary repairs.

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: Power steering line

There are several places where a leak can come from on the power steering. There could be a failed hose, loose fitting, worn seal, or any number of other possible places that fluid can leak from. Cleaning off any leaked...

Q: What is the System Check function on the message center?

The System Check feature in your car’s message center is designed to provide you with information about various systems and their functionality. If you see a message that reads “Reset for system check” on your display, press the Reset button....

Q: Alternator/Battery issues

Inasmuch as you installed a new battery, this is probably a charging system related issue, but the charging system includes not just the alternator but all interconnecting wiring. So, you do have to consider the possibility of high resistance connections,...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.