Skip the auto shop - Our mechanics make house calls

Q: Damage to my brake booster

asked by on

If I replace my master cylinder, if there is liquid in the brake booster will it damage the brake booster, should there be any liquid in the brake booster?

My car has 130000 miles.
My car has an automatic transmission.

A: Brake fluid in the brake booster is definit...

Brake fluid in the brake booster is definitely a sign of a leaking master cylinder as you know. Additionally, brake fluid in the brake booster will also cause deterioration in the diaphragm resulting in failure leading to vacuum leaks and other problems. There should not be brake fluid in the brake booster. If you would like to have your vehicle serviced, consider YourMechanic, as a certified technician will be able to inspect the brake system and help you proceed with the right repairs.

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・Save up to 30%

Get a quote

What others are asking

Q: My directional lights only works when my lights are off

It sounds like you may have short in the electrical system. It will require testing to determine the location of the fault. I suggest having a certified technician, like one from YourMechanic, perform tests to diagnose the issue with your...

Q: Can't get the serpentine belt back on

There should be a belt routing diagram either on the trim panel over the radiator or the underside of the hood. If not, most auto parts stores should have repair manuals available for your vehicle. If you would like a...

Q: No Crank No Start, dashboard lightup with No Bus warning

Considering the problems at hand it may be best for an in person diagnosis of the situation. The problem could be as simple as a failed sensor or broken wire, or the power-train control module itself going faulty. Considering the...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...