My brakes are sticking

Is it possible that any of the old brakes pads were ground down to metal before replacement? Some metal shavings may have magnetically stuck to abs wheel sensors. I would try to remove the shavings and clean the wheel speed sensors, check all wiring to and from these wheel speed sensors. If all checks out, a code check of the ABS module will need to be doe with a scanner. You may remove the abs pump motor fuses. Not recommended, but may isolate problem, if it still occurs with abs motor having no power, it is your basic hydraulic system. I personally feel you have a ABS issue.

I’ve replaced everything in the braking system. When I take off the brake line and it returns to normal again. What should I try next?

And master cylinder was replaced front brakes lock up only.
Brakes lock up even if car is not moving when we unplug the brake line from engine brakes loosen again and when they lock up and your driving it overheated the car.

I replaced the filter.
When I got the car I drove it for a few months and then it started locking up when driving later we took it to a mechanic we let it warm up they locked up sitting not moving.

Not filter brake booster.
When you unplug the brake tube vacuum.

I have a 2002 Hyundai sonata 2.4 no abs. I drive about 5 miles and brakes lock up. I disconnect hose from booster and it release brakes. I replaced booster with a used one and it did the same thing. I inspect master cylinder and no fluid leak at master be I replaced power brake booster

How much pressure should the vacuum have?

I have a Sonata 2005 2.7(V6)GLS NO ABS NO Traction Control drive about 4-8 miles depending on the temp. Cooler it takes a little longer, the front brakes lock up till you cannot move. Have redone the whole braking system new everthing ! This car only has 61,521 miles has been maintained well never experience anything else, no noises or anything. Replaced front pads last year. This started out of the blue while driving home, no indication of anything till all of a sudden. Frustrated, and confused cause noone seems to know what the problem is, I have replaced several parts from auto store to another. My car seems to use '04 parts and '05 parts. Have not taken to dealer as of yet, have a personal mechanic by trade that does everything for this car and he cannot figure this one out. HELP! HELP!

Repaired a wheel cylinder on back, now the front brakes lock up about every five miles. This car does not have ABS and do not see a release valve. I can release the pressure at the bleeder or the master.
Got a new master same thing still happening.

I also backed the screws out on the master cylinder to see if the rod was keeping it in. Still locked up. Maybe I did not unscrew it enough?

I figured it out it is the brake booster not sure if the pedal is adjustable or not. However, the screw is just have to take the master all the way off to adjust it.