Poor Braking
#1
Poor Braking
Hello all. I have a 99 F-150, 4 wheel disc, 4X4, 5.4 with terrible brakes. I don't drive this truck much, only 4k miles since last June, and I've had problems with pads getting stuck due to rust. I recently replaced all rotors, pads and front calipers due to poor performance, but I still seem to have a problem. I can not get the brakes to lock, or abs to come on, when braking on pavement. ABS will come on in gravel or grass. When the truck is running, I can push the pedal to the floor. I have constant resistance, but it doesn't take much effort to get it to the floor. I have bled the brakes until I had clean fluid at all wheels, I've made sure the calipers slid smoothly, and the pads weren't binding. I think I'm looking at the booster or the master cylinder. Does anyone out there have any suggestions?
#2
to me it sounds like the master cylnder is leaking in the inside of the housing so you are not loosing the fluid out . there is a little rubber cup that tends to go out quite often on thoses. but if the booster was out it would take a lot of effort to push the pedal to the floor. also check to see if there is a leak some where on the break lines
#3