Skip the auto shop - Our mechanics make house calls

Q: Master cylinder and brake booster leaking

asked by on

The brake booster and master cylinder in my truck are leaking.

A: Worn master cylinder seals can cause brake ...

Worn master cylinder seals can cause brake fluid to leak into the brake booster, damaging it. I'm guessing this is what happened to your truck. Replacing both the master cylinder and brake booster is the only way to solve this problem. A trained professional, such as one from YourMechanic, can do this for you.

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: Leak in the braking system

Generally, that's the brake master cylinder, and when they leak, they leak into the booster. So what you might try to do is take the master cylinder off and see if the inside is wet. Take a flashlight and look...

Q: Door handle not opening door

Hello. This is a common problem with Chevy vehicles. There are plastic tabs on the back of the interior door handle. These plastic tabs have connecting rods that attach to them. Over time, these tabs break from usage. When they...

Q: Oil leak; car won't start

These issues may be related or they may be completely separate. The most common cause of a no-start is a failed battery. Oil leaks are extremely common and usually caused by failed seals and gaskets. The car also may also...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...