Recently my brakes went out. I was driving and the pedal got very hard and you have to almost stand up to get any braking power. After the car sits over night the pedal never loses any pressure it stays hard. If you push it with the car off the pedal does not move but a little. When you start the car the pedal remains hard but you can hear the motor change sounds. It feels like there is a blockage somewhere in the system and the fluid is not going to any of the calipers. The parking brakes work fine but I know they are on a cable. Could it be the ABS pump frozen or a bad caliper or line.

 

sounds like either the brake booster gave out or the brake booster vacuum hose did

 

I just check the booster and it is working. I pulled the lines at the master cylinder and the brakes went down. I loosened the lines on the abs one by one and no fluid came out. How hard is it to rebuild the abs module.

 

if the pedal lost pressure it would be soft not hard

​​​​​​​if the booster was functioning you would not have a hard pedal, but feel free to rebuild the abs module

 

​​​​​​​If I disconnect the lines before the abs module the pedal moves without a problem. It is gets easier to push when the car is running. When I disconnect the brake lines from the abs module on the side that goes to the brakes on by one only one two of the ports squirt fluid when I used the brakes and two of them does not. It is like there is a blockage in the abs pump

 

Even if one line was plugged the rest of the brakes would compress. Are you saying that the brakes are as hard as they are when you deplete the vacuum in the brake booster after turning off the car ? Or are they harder than that ?

 

The pedal does not move at all with the car running or not. If you standup on the brake, I mean push with about 100 lbs of pressure they catch a little. What I did was I disconnected the vacuum line and nothing changed. I opened the bleeder on the ABS module and pressed the brakes with the car running and with it off and nothing came out. I disconnected the lines directly from the master cylinder and tested them individually with the master cylinder still in the car once with the car running and once with it off line by line and the pedal went down and fluid came out as it should.
My second step was to disconnect the lines directly from the ABS module one by one since it seems to control each wheel individually. As I removed each line I tested the brakes once with the car running and once with it off. To try to narrow it down I tested the line and closed it back after testing it. What happens is when I open two of the lines fluid comes out when the brakes are pressed. The other two nothing happens. I think this is what is causing my issue since the blockage is keeping the pedal from pushing the fluid to the other brakes.
I'll try to post a video if I can get someone to press the brakes while I record.

 

Sounds like the booster is bad, or the check valve.

Brake systems follow Pascals Law ,so of course the brakes will get easier to push, once you crack a line open. You're relieving hydraulic pressure. The booster is there to help you over come the pressure. It magnifies your foot/pedal actuation by 10 fold.

 

Seized calipers.

 

this was the original giveaway to me that the booster was bad since a bad booster will create a vacuum leak

go find another car to test and start the car and press the brakes and let up, then turn the car off and pump the brakes a few times to deplete the vacuum in the booster, eventually the brakes will get hard

at that point see if the brakes feel as hard as you are feeling on your car, if so then your booster is likely bad

 

The honda was easy to press in the beginning but somehing has to be clogged. If I leave the car sit for days the brakes does not get any softer. Tried in the acura and they are easy to push before starting the car and easier after starting it.