Q: All four brakes locking up after being driven for about 45 minutes

asked by on

After driving about could 45 minutes the brakes won't release causing them to get hot. Let it sit and they will release
My car has an automatic transmission.

Hi there, if work was recently done on the master cylinder or brake booster, check to see if the brake push rod (manual or power assisted) has too little free play. If it is too tight, the master cylinder piston could be partially blocking the return port. If the brake fluid reservoir is too full, this can cause hydraulic brake drag. A weak or failed metering valve - a valve intended to keep a small amount of pressure on the front disk brakes only, could be causing a small amount of pressure on all of the brakes temporarily as you are experiencing. I would recommend having an inspection done on your dragging brakes by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. All four brakes locking up after being driven for about 45 minutes

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: My truck doesn't work properly after replacing the spark plugs and wires

A few different faults can cause the vehicle to lose power like this after a spark plug replacement. The most likely possibilities are that one of the spark plugs is loose, there is a misfire from one or more of...

Q: Brakes making chattering noise

Hey there, thanks for writing in about your 2000 Saturn LS. There are a couple of possibilities this could be. A warped rotor can sometimes be hard to see with the naked human eye, but can often cause enough chattering...

Q: My temperature gauge is going from cold to hot in a half mile. The hose going to the thermastat is HOT. Does it sound like the the

If the thermostat is open you will get the hot bottom and top hoses. Check to make sure the fan clutch is locking up and giving enough air flow across the radiator. If you have electric fan style, then 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...
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...
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...