Skip the auto shop - Our mechanics make house calls

Q: Soft breaks

asked by on

I just replaced the master cylinder. And now my brakes are still soft going about ten to fifteen mph the stop ok but the greater the speed the worse they get at not stopping

My car has 300000 miles.
My car has an automatic transmission.

A: When you say (and now my brakes are still s...

When you say (and now my brakes are still soft) this means you had soft brakes before and after the master cylinder was replaced. If you have soft brakes, it is caused by air in the brakes, problems with flexible hoses, calipers binding, and rear calipers not adjusting and traveling excessively. You will need to have all these possible problems checked to completely diagnose the brake problem you are having.

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: Recall completed?

If the recall was performed then you would know if the ignition key has to be pushed in to rotate it to the off position. If the recall was performed you should have a sticker put next to the key...

Q: My car key stop working last night and its was the only key I had. Where could I go to get a new key?

Hi there. The dealership would have a replacement key for the vehicle. First try replacing the battery in the key fob or the key it self. Then you will have to reprogram the key to the ignition and the door...

Q: Check engine light just came on.

The P0320 trouble code could very well indicate a bad camshaft sensor. The pinpoint test should be performed before replacing the sensor. If you need help with diagnosis, contact a mechanic for a diagnosis of the Check Engine Light....

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
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...