Originally Posted by flipped73
When we bled it was pump 3 times and hold on the third. We did this till there was no air and the fluid ran clean. Fluid was dark before so figured it was time to flush it out. Did not adjust the booster rod.
Any help is appreciated!!!
If you didn't adjust the booster rod, it may be pushing in slightly on the master and not uncovering the ports to the reservoir fully. If the booster drops even a tiny bit in that case, it will block the ports, fluid in the lines will heat up and apply the brakes for you. Typically that ruins pads, rotors, and front calipers because you won't pull over in time.
Don't use that method to bleed brakes. That's very old school and all it does with modern masters is entrain tiny bubbles of air in the fluid which later coalesce into bigger ones.
The best method is described above. You also did not answer my question as to how much flow you were getting? The pedal needs to be pushed to the floor with enthusiasm. It should take a fair bit of effort to keep the fluid line on the bleed screw when the fluid is flowing through it.
What brand master did you buy? If it's A-1 Cardone, you have a high risk of having a bad master out of the box. Find a different brand if that is the case. Centric makes a good one as do Raybestos, Bendix, and Wagner.