Skip the auto shop - Our mechanics make house calls

Q: Breaks Not Working

asked by on

This morning I was getting ready to leave for work and as I turned my car on and put it in drive it went backwards at full speed into a curb my break light has been on for a couple days and I've been kind of letting it do it's work but today it went bad I guess and also my lights are on and I don't know what it is can you please help me figure this out?
My car has an automatic transmission.

A: Hello. Brake failure can happen for a numbe...

Hello. Brake failure can happen for a number of reasons. The most common is lack of brake fluid. If there has been an ongoing brake fluid leak, the vehicle would have set off the warning light once the level got to a point of concern. Locate your master cylinder and open the cap to check the level of brake fluid. Once you have determined there is a leak, your main focus needs to be on finding and repairing that leak. You can then refill and bleed the system. Common places for leaks are on lines, the master cylinder, or bleeder valves. Brake boosters can also fail and cause brake failure. Keep in mind when the main brake system fails, the emergency (AKA parking brake) is a back up system will trigger your brakes separately. You should always rely on this brake when in a situation like you found yourself. Make sure after the issue is resolved that you do a general inspection of the brake system to make sure nothing was damage in the process. Find and repair the leak, properly bleed the system of any air, and you should be good to hit the road again.

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: Dead short in the electrical system.

I would ask for help from one of the mechanics at YourMechanic. They will have one of their mechanics come to you with the proper test equipment and knowledge to diagnose a fix the short in your electrical system.

Q: My car is emitting black smoke and has poor acceleration

Hi There, Black smoke coming from the exhaust is usually an indication of a rich fuel condition. When this happens, this can be the result of many things such as faulty fuel injectors, a failing mass air flow sensor or...

Q: Do I need a brake fluid flush when I replace my brakes?

Brake fluid, like other fluids used in our vehicles, is subject to degradation over time. Brake fluid is a hydraulic and hygroscopic substance which means it absorbs moisture if left exposed to atmospheric humidity. Minute pieces of rubber can break...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.