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Re: front brakes locking up...
I have a couple ideas for you. first make sure you bled out all 4 wheels making sure to get the air out. also check your abs module and see if it has a bleeder screw on it and bleed it. The second thing is after you drive it, does it seem like the brakes don't release after braking? is it ok when it's rolling? you may have a collapsed brake hose from your body to the calipers, allowing pressure through, but not back. This also makes sense after a few miles, when your brakes are just getting warmed up. after it starts locking up, jack it up and see if the wheel will spin. then see if the caliper piston will go back in. if it doesn't want to go in as easily as it should, or not at all, open the bleeder and see if it goes back. if it does, there's your problem, the hoses.
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A few things to check, Is the brake fluid returning to the master cylinder at rest ?, To test jack up one wheel, is it hard to turn, if so slacken off the bleeder screw fluid should be expelled, did the wheel free up, if so the fault is at the master cylinder, check the rod from the pedal to the master cylinder has free play, if not adjust it, if ok there is a fault with the master cylinder buckets swollen or return port blocked. If no fluid was expelled and the wheel is still binding check for frozen wheel cylinder pistons.
if you replaced all the brake parts I would check your hub bearings and cv axels if the noise is coming from front if the noise is in the rear check your e brake shoes located inside of the rear brake rotors if u have disc rear brakes or your rear brake bearings .. hope this helps
THE MASTER CYLINDER NEED TO BE BLED FIRST.BEFORE PUTTING ON THE CAR.TO MANUAL BLEED BRAKE SYSTEM.YOU NEED 2 PEOPLE TO DO A BETTER JOB.YOU FIRST BLEED THE LEFT REAR RIGHT REAR LEFT FRONT AND RIGHT FRONT. WHEN YOU BLEED THE BRAKES.HAVE THE HELPER PUMP BRAKES 3 PUMPS.AND HOLD BRAKE PEDAL IN.YOU NEED A CLEAR BLEEDER HOSE IN A CLEAR BOTTLE HALF WITH CLEAN BRAKE FLUID. WITH BLEEDER HOSE ON BLEEDER SCREW AND OTHER END BLEEDER HOSE IN BOTTLE OF BRAKE FLUID.WHILE HELPER PUMP BRAKE PEDAL HOLD IT IN OPEN BLEEDER SCREW 1/4 TURN ALLOWING AIR BUBBLES LEAVE THE BRAKE SYSTEM.CLOSE THE BLEEDER SCREW BEFORE BRAKE PEDAL RELEASE.HAVE HELPER PUMP BRAKE PEDAL 3 TIMES. WITH PEDAL HELD DOWN OPEN BLEEDER SCREW GETTING AIR OUT OF THE SYSTEM.WHEN YOU SEE SOLID FLUID COMING OUT OF BLEEDER HOSE THE AIR IS OUT THE BRAKE SYSTEM.DONT DRIVE CAR ON HIGHWAY IF YOU STILL CANT GET SOLID BRAKES. HAVE CAR TOWED IN TO BE PRESSURE BLEED.
remove the master cylinder and check the plunger projection make shore it is with in specs, using a vacuum pump check condition of capsule see if it holds the preasure and its not leaking off. if its leaking change capsule and check valve
I had a similar problem with my anti-lock brake. One of the will wear down. I took it to the dealer, could not tell why. Until one day the a brake light came on. It was a bad sensor. Replace the bad sensor and the problem went away. The mechanic plug a portable instrument and drive the car around until he find out. (The brake light came on, then off.) This anti-lock brake system is control by sensors and it one is not functioning properly then you have a problem. I do hope this help you.
Sounds like the front brake hoses went bad on you. Fluid goes into the calipers and builds up pressure, and applies the brakes, because the fluid can't come back out of the calipers. Usually when hoses go, they tear on the inside, creating a one way valve type of flap. I hope that this helped. Best wishes to ya.