Skip the auto shop - Our mechanics make house calls

Q: Over heated car brakes locking up

asked by on

Car was making a squealing sound and had a smell I seen it was over heated pulled over white smoke coming from underneath and leaking underneath on passenger side. Let it cool down tried driving again got to 30mph and brakes locked up every light came on dash. Mechanic replaced bent valves water pump an fan or timing belt. I have car home now but need to understand why the brakes locked up like that?

My car has 125000 miles.
My car has an automatic transmission.

Hi there. The overheating will cause the master cylinder to get too hot which can cause the brake fluid to boil or it can cause the master cylinder to expand from heat and bind. If it is acting fine now, I would flush out the brake fluid just to be sure it did not break down. If you need to have this checked in person, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your overheating issue to verify the culprit part(s) and make 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・Fair and transparent pricing

Get a quote

What others are asking

Q: Doin transmission swap

Hi there: Although the wiring harness for your original car might be the same as the old harness, it's always a good idea to utilize all components from the old transmission when doing a straight swap over. I'd recommend removing...

Q: trouble getting into reverse - 2010 Hyundai i20

Hey there. This is a common problem when the transmission synchros are going bad. These are small forks in your transmission that help get your car in and out of gear. When these get worn or break, you will experience...

Q: Air conditioner compressor does not turn on

Hi. If the air conditioner compressor does not turn on, this may perhaps be indicative of a problem with the fuse or relay, or perhaps something more serious, such as a failed compressor. I would recommend having the vehicle's air...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...