Poor Braking
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Joined: Jun 2006
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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?
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Joined: Feb 2006
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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
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Joined: Jun 2006
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I picked up a new master cylinder today at NAPA, only to find out when i got home that it is 1 1/16 and mine is 1 1/4. Maybe mine is bigger because of the tow package?
Also, I checked for leaks, there are none that I could find. The fluid level in the resevoir has never gone down.
Also, I checked for leaks, there are none that I could find. The fluid level in the resevoir has never gone down.
