Skip the auto shop - Our mechanics make house calls

Q: mushy brakes

asked by on

I bench bled and replaced the master cylinder. Due to ground conditions, I couldn't jack up the truck to bleed the brakes and used it with mushy brakes for one week. I took it to a mechanic and had him bleed the brakes. This was no help. I took it to another mechanic, told him what I had done, and had him bleed them. It still has the same problem. When I put pressure on the pedal, it stills goes down to the floor. Is it possible that air entered the master cylinder during the week I used it before I had the brakes bled or could it have something to do with the ABS modulator or something else? I know no one checked on the modulator and neither checked their work after finishing it to see if it worked. They just said it had been done and charged me for the work.

My car has 230000 miles.
My car has an automatic transmission.

A: You are going to have to get the brake syst...

You are going to have to get the brake system pressure bled using a pressure bleeder and a scanner capable of activating the ABS bleed function. Until this process is done, you will not get a good brake pedal. The bleeding process may need to be done several times to get all the air out of the ABS modulator and brake lines. If you need assistance with this, a certified professional from YourMechanic can come to your car’s location to diagnose the brakes and ensure that all the correct repairs are done.

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: P1516 engine code and reduced engine power message

Hello, and thank you for writing in. The P1516 code you received stands for an issue with the Throttle Actuator Control Module. The throttle body, the actuator module, and the wiring may all need to be inspected. The TAC module...

Q: Service Engine Soon Light came on yesterday.

While the oxygen sensor may be the cause of the service engine soon light coming on, it's best to have a certified technician correctly diagnose why the service engine light is on. When the service engine soon - or check...

Q: Metallic grinding sound - 1999 Dodge Ram

Set live and also sent to CS.

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...