It could be a few things ...i would check the brake booster.. If it is bad it will make your pedal go all the way to the floor before it will have any brake pedal at all..also i would check your vacuum for the booster for your brakes to work you have to have vacuum on it for it to work !hope this helps, and as allways if you are not sure get a second opinion !
Service brakes - replace Master cylinder Parking brake- either lubricate or replace cables ; I had a similar problem with my 1999 Chevy blazer, i ended up replacing the caliper and have had no problems since.
Vacume problem or problem with booster/insufficient fluid, leak check those things.
Ruptured wheel cylinder--needs to be replaced Chances are brakes have been soaked with fluid and need to be replaced Good idea to replace both sides and bleed system
Its not your bearings you idiot its your brakes. Take it in and have them replaced.
You need to "bleed" the brakes at each wheel. R
A master cylinder should be replaced when it can no longer provide the pressure needed for the brakes to operate. You can tell it is failing when the pedal becomes soft.
Because there is a problem with the ABS. Replacing the brakes and wheel bearings will not fix this problem. Seek professional help to diagnose the problem.
I am having the same problem. Ist time overhauled calipers. Right front pads wore out quickly. Next replaced calipers, same deal right front is locked to the point where care shakes and cannot be driven. Thinking proportioning valve or master cylinder? Anyone ever run into this?
Master cylinder possible but could also be wheel cylinder problems or warped rotors
If the brakes were working before bleeding and now are worse, then is possible all of the air is not out of the system. Check the wheel cylinders and master cylinder for leaks, and re check any parts just replaced. It is possible that the last repair done to the system caused the problem.
The Slave Cylinder and the Master Cylinder control totally different systems. The Slave has to do with the clutch, and the Master has to do with the brakes. They have nothing in common.
If the rear wheel brakes are locking up on a vehicle they should be thoroughly checked. The master cylinder may need to be replaced on the car.