Skip the auto shop - Our mechanics make house calls

Q: Brakes unresponsive only one time

asked by on

The other day I was about to park the car and apply the brake but it was unresponsive. So I tested it right away by reversing, then braking and going forward and applying the brakes again. The brakes were working normally then. I was told by a mechanic that this could be caused by a bad master cylinder but that this brake failure had to happen again. He tested the brakes numerous times but this didn't happen again. What do you think? Should I be worried?

A: Inoperative brakes are a definite safety co...

Inoperative brakes are a definite safety concern. If it happened once, it will happen again. Unfortunately, if the vehicle isn’t currently acting up, it may be difficult to diagnose. The mechanic is correct that the most likely cause of your concern. The master cylinder is the main component in the brake hydraulic system. It’s job is to transform the force of the driver’s foot on the brake pedal into hydraulic pressure. If there is excessive pedal travel but no external brake fluid leaks, the master cylinder is leaking internally and should be replaced. I suggest you give the team at YourMechanic a call for a second opinion and diagnosis of your car’s brake system.

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

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: Master/Slave Cylinder

If you have fluid leaking on the floor then this is from the clutch master cylinder leaking past its seals. I would recommend replacing the clutch master cylinder and the clutch slave cylinder as a set since the master cylinder...

Q: What are the best brake pads to get for my volvo c70? I am in rushhour traffic and I travel to the beach.

The best brake pads and rotors for your car are those supplied by Volvo. Nowadays, those parts can be obtained from legitimate Internet Volvo dealers at a discount off of what you would pay at a local Volvo dealer. If...

Q: Catalytic converter replacement.

This would depend on the code that is retrieved from the check engine light. It never hurts to get a second opinion. I would recommend having another technician, such as one from YourMechanic, come to scan your vehicle for trouble...

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 Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...