Bleed em again. Then replace the brake lines. Which would involve more bleeding.
could be the master cylinder. or the calipers may be siezed
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.
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.
just bleed your brakes through each wheel cylinder until the fluid runs clean
Most likely it is your master cylinder that has to be fixed. I had a simulator thing on Honda Accord. You can check it by seeing if your fluid is getting lower. If it does it a leak somewhere and your master cylinder is fine, but find the leak ASAP. If the fluid level stays the same the 90% it is your Master Cylinder that has to be fixed.
You need to "bleed" the brakes at each wheel. R
Air in system? Remove and bench bleed master cylinder Bleed lines and calipers
The ECU for the ABS brakes is attached to the Master cylinder for the brakes.
master cylinder is sticking
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.
. If you have the 4-port master cylinder, the bottom ports go to the rear brakes & the upper side ports go to the front brakes.
The ECU for the ABS brakes is attached to the Master cylinder for the brakes.