Skip the auto shop - Our mechanics make house calls

Q: front brakes locking up

asked by on

When the temperature outside reaches 85 degrees or more, my front brakes will gradually start to lock up and I must pull over and let them cool down. I park on hills and I can hear them releasing after about 20 minutes. Im clueless.

My car has 154697 miles.

A: If your front brakes are locking up after g...

If your front brakes are locking up after getting warm, then you will need to have the system inspected while they are locking to see if the master cylinder is holding pressure to the brakes, the calipers are not releasing, brake hoses are getting blocked, or the brake booster is pushing on the master cylinder partly.

In order to test the components, you would first need to crack the brake line at the master cylinder to see if it releases the fluid. If not, then it is in the hoses or calipers, and the bleeder should be opened to see if it releases. If it does, then it needs hoses. If it does not, then the caliper pistons or slide pins are binding.

I recommend that you have this issue taken care of soon since your brakes are pivotal to your vehicle’s safety. A certified technician, such as one from YourMechanic, can come to your car’s location to diagnose your braking issue and let you know what needs to be done.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Brakes locking up

The brake pedal being hard to push is telling me that there is a problem with your brake booster. The booster uses engine vacuum to help you apply force to the brake pedal. When the booster is not working this...

Q: Am I being lied to?

According to the GM parts catalog, toe links are used on some versions of the 2012 Terrain. When so equipped, the toe links are obviously never left off the vehicle at the factory simply because such links are an integral,...

Q: I am trying to do distributor timing.

Hi there, thanks for writing in. You would need to disconnect the timing connector near the distributor and set the timing by using a timing light, then reconnect the connector. You may have to pay about an hour labor for...

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...
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...
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.