Skip the auto shop - Our mechanics make house calls

Q: Need to know if I need to have brakes replaced at the same time as the master cylinder?

asked by on

The brake makes a hydraulic type noise. When I press the brake pad, the SUV keeps sliding. The brake pedal sticks to the floor when I try to stop.
My car has an automatic transmission.

Hi, thanks for writing in. I’d be happy to provide my insight. You do not automatically need to replace the brakes with the master cylinder. When facing brake issues, always do a full inspection. Brakes are such a critical safety component, so ensure they are functioning 100%. If the brake pads, rotors, drums, or shoes are considered good according to manufacturer specifications, then you do not need to replace them. Inspect the brake booster as well. If replacing the master cylinder at home, make sure there are no leaks on the system. If you are loosing brake fluid, and its not leaking from the master, you have a leak and it must be repaired. Hydraulic fluid always needs to be bled after the system is opened and exposed to air. This process eliminates any air in the system that will compress and not allow the brakes to compress completely. Always refill the master cylinder with new hydraulic brake fluid when working on the system. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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!
  1. Home
  2. Questions
  3. Need to know if I need to have brakes replaced at the same time as 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: Front AC not blowing cold air

Hi there. Lack of cold air is a common issue for vehicle's to encounter when it comes to the AC. This lack of cold air is due to low refrigerant level in the AC system. An AC recharge would solve...

Q: Dash lights not working

Hi, have you checked the fuse for the instrument cluster? This is a quick and easy check, however, if the fuse is blown, it blew for a reason, so replacing it is only a temporary solution. As the circuit will...

Q: Can I replace a 2000 Ford Expedition 4.6 liter engine with a 1994 Lincoln 4.6 liter engine

The 2000 Ford Expedition has a newer version of the 4.6 liter V8 in the Lincoln Town Car 1994. Most of the parts are interchangeable however the intake manifold and a few other parts will not be compatible. It is...

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...
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...
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.