Skip the auto shop - Our mechanics make house calls

Q: Brake pedal not working properly.

asked by on

Brake pedal goes to the floor, taking a lot of pressure and time to stop.

A: The brake master cylinder on your car has t...

The brake master cylinder on your car has two internal chambers and it sounds like you have one of them failing or you have a major fluid leak. The first thing to look at is if the fluid is low or not. If it is low then you have a leak somewhere in the system. If the fluid is full then you have a master cylinder failure. I would recommend you have a brake certified technician check the system completely for any and all problems.

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・Save up to 30%

Get a quote

What others are asking

Q: locks up at high rpm then able to free up and run again

The problem may be the transmission pilot bearing for the transmission input shaft on the back of the crankshaft seizing up or the input shaft on the transmission seizing. If it is not the transmission, then it is the internal...

Q: New relay, has an extra prong. Fan won't stop running after installing.

This is most likely the wrong relay for your vehicle. Either looked up or packaged incorrectly. I suggest matching up the original relay.

Q: Hard to press brake

Hello. This is caused by a bad brake vacuum booster. When the booster fails, the brakes will get hard and it can cause a vacuum to leak in the engine causing a misfire. It sounds like this is what is...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...