MitchF150 wrote:
Peeps.. When you bleed brakes, you open a single line (think of that as a failed brake line). When you press on the brake pedal, it'll go to the floor pushing out fluid. Let the pedal come back up and press again, it'll go to the floor again and push out more fluid..
Close that bleeder valve and it's all solid again.
Yes, there are two separate systems, but that's because the front brakes are set to apply MORE pressure than the rears when you slam on the brakes... They are both part of the same system that when one line fails, the entire system will have no pressure.
You would need 2 master cylinders to have the system you are thinking of... ;)
In the OP's case, we don't know what failed, so it's just 4 pages of speculation.. My guess is probably one of the rubber lines failed, but that's just a guess...
Mitch
This is as good as it gets. I can't make it any simpler. Look at the diagram and see how a brake system works. They even explain what happens when you have a leak.
Here is what happens when someone "says" they lose "all" brakes. They bust a line or blow a fitting or whatever when they hit the brakes the brake pedal goes down; WAY down............but not to the floor. The reason this happens is because the first piston has to pick up the slack until it contacts the second piston. The second piston operates the second system and you have brakes from what ever system is not compromised.
The problem is people panic. They feel the pedal drop and their brain says that NEVER happens and they "think" they have no brakes when all they have to do is press real hard to make the two pistons contact each other so they do have brakes. And they will as long as the second system is working.
