Skip the auto shop - Our mechanics make house calls

Q: Brakes hard to press

asked by on

When I press on the brake, sometimes it is hard to press down. Then when I push real hard, it goes back to working fine temporarily. It sounds like I'm letting air out of something when I press on the brakes. If I press real hard, it makes a screaming noise.

It sounds like your brake booster is worn out. There is a diaphragm inside the booster that wears out and will not allow the booster to get enough vacuum to work properly. I would have a technician from YourMechanic come out and perform a brake inspection and inspect the brake booster.

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: Weird dentist drill type noise from under hood after a cold start.

Hi there. The noise sounds like the serpentine belt is slipping. Try removing the belt and see if the noise goes away. If the noise goes away, then either the belt is worn and needs replaced or the tensioner is...

Q: Speedometer broken

One of two things has likely failed here: the speed sensor in the transmission, or the speedometer assembly. A computer scan will see whether the dash is getting a signal from the speed sensor. I recommend having a mechanic, such...

Q: Worn ball joints causing excessive tire ware.

There really is no rule of thumb on how long ball joints will last, there are just too many factors that go into the wear of them. The design of the system, the driving conditions, how much heavy hauling/towing is...

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...
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...
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.