Skip the auto shop - Our mechanics make house calls

Q: Have a brake fluid leak from a part under master cylinder, where lines from m-cylinder connect to.

asked by on

I am able to clearly see fluid leaking from this part. The 2 lines coming off m-cylinder connect to it and it is about a foot or so below. It looks like it may be white plastic underneath with a rubber boot (similar to an axle boot) that appears separated or torn from plastic exposing white plastic underneath. I would like to know what this part is named and how common or uncommon it is for this part to fail and how hard it is to replace.

My car has 104000 miles.
My car has an automatic transmission.

A: In time, brake fluid degrades and absorbs m...

In time, brake fluid degrades and absorbs moisture. It will degrade rubber components of the brake system which include the[master cylinder, front and rear brake calipers.

The leak you see is from the master cylinder reservoir seals. You can just get the reservoir with seals but I advise replacing the master cylinder and getting a brake system fluid flush.

If you need assistance with this, consider YourMechanic, as one of our mobile technicians can diagnose the brake leak firsthand and make the necessary 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: How many miles can I drive on empty?

Every vehicle is a little different when it comes to how many miles you can drive when your low fuel indicator first comes on. The fuel gauge is an estimate of how much fuel you have in your fuel tank....

Q: No resistance in steering and noise when wheel turned all the way left after slight fender bender

Hi there. It sounds like part of the suspension was bent when the accident occurred. From what you are explaining most of the time the strut or the lower control arm gets bent and causes this. If you want to...

Q: Found misfire on all cylinders by code reader. I checked vacuum and it was low at 14 hg. I checked compression 160 to 180 except no. 3 cylinder 180 to 270.

Hi and thanks for contacting Your Mechanic. When it comes to a misfire, first check for spark and make sure that the spark plugs are functioning correctly. Then check the fuel injectors and make sure that they are not plugged...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.