Skip the auto shop - Our mechanics make house calls

Q: Soft brake pedal

asked by on

I have completely bled the brakes ( abs) but I still have a soft brake pedal. When the engine is not running the pedal is nice and hard. I have changed the master cylinder and there are no leaks in the system. Is it likely to be the abs module?

A: Hello. A mushy pedal is usually caused by i...

Hello. A mushy pedal is usually caused by issues with the hydraulic system, usually air in the system. I would make sure that the system is properly bled, and that the new master cylinder was bench bled, if it was required to do so. If the system is bled, I would then check the brake booster, as a faulty booster can also cause similar symptoms. A faulty ABS module is also possible, though less likely if there is no ABS light or malfunctions. A qualified professional from YourMechanic can scope this issue out in person if you are looking for a precise diagnosis and repair of the soft brake pedal.

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: signs

The anti-lock brake system uses sensors in the wheels and other inputs to help control the wheels from sliding, locking up, and to help control the car under certain driving conditions. Issues with the system could include these sensors, any...

Q: Squeaking noise in brake pedal

If your brakes are squeaking, this can be caused by a number of different things. The brake rotors could have a surface finish that no longer promotes quiet braking. The brake rotors should have a criss-cross looking surface finish to...

Q: My car would not turn over and made a loud noise when trying to start it

This depends on what the loud noise was. If a starter was not working, then you would hear either a simultaneous clicking sound for a low battery or a one time click for the starter solenoid sticking. If you heard...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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...