mixybro4

I have been working on my friends 2000 Maxima and he recently did some brake work, new front calipers, rotors, pads. I came over to help him bleed it. I bled it with the car on in the order RR, LR, FR, FL. I bled the hell out of it, and all it would do is eventually build up pressure after pumping and if you held it in, it would all go away, but at first it goes straight to the floor, and if you let it sit for like 5 seconds. I went and rechecked all the bleeder screws to make sure nothing was leaking, I found no leaks anywhere. Bled it again and same problem. I assumed the M/C was bad, put a new one in after bench bleed, and no luck. Same problem. I then unplugged the vacuum line to the booster and plugged it, pump the pedal once and it has quite a bit of pressure, second time and its solid as a rock, if the pedal is held down the pressure stays. Tried to drive it like this but unfortunately my friend is not strong enough to brake without the booster. Plug the booster back in and immediately the pedal goes to the floor. I am skeptical over whether or not it is the booster because the pedal is not hard to push when the booster is plugged into the vacuum. Does anyone have any ideas?

mixybro4

Anyone have any ideas? Perhaps the M/C i put on was bad?