Skip the auto shop - Our mechanics make house calls

Q: I just replaced my brake master cylinder and the brakes still feel soft. What do I need to do after I replace the master cylinder

asked by on

I just replaced my brake master cylinder and my brakes still feel soft. what do I need to do now after replacing the master cylinder. also I have a check engine light on my dash now. I took it to be read and it states brake booster leak. what could that be?

My car has 240000 miles.
My car has an automatic transmission.

From what you’ve described you will have to bleed your brakes. Also, I believe you may have a leak in one of the lines. You may want to use a wrench and tighten the lines a little more. If you’re unable to fix this yourself, consider YourMechanic, as one of our mobile technicians can come to your home to bleed your brakes, diagnose the Check Engine Light, and help you make the appropriate repairs to your car.

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
  • Home
  • Questions
  • I just replaced my brake master cylinder and the brakes still feel soft. What do I need to do after I replace the master cylinder

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: Tire size

You can look in the driver's door or in the glove box cover for the tire size for your vehicle. If you change the tire size from the size the car came with you will change the transmission shifting, and...

Q: Courtesy light fuse drains battery 2000 Chevrolet Silverado

Hi there - great diagnostic work! At this point, having identified which circuit is causing the drain, you will need a wiring diagram that identifies what other devices are on this circuit (clock, underhood light maybe?), and could be drawing...

Q: Check Engine Light is on - 2008 Dodge Avenger

Hello. From what you describe it would appear that your Check Engine Light is on for the intake manifold position sensor. Your vehicle is equipped with an intake manifold that uses butterfly valves inside the manifold ports in order to...

Related articles

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...
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...
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.