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New Brakes, No Pedal While Engine is On

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Old 11-23-2016, 11:26 PM
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New Brakes, No Pedal While Engine is On

The brakes on my 2000 F-350 have been grinding and pulling my truck to the right since I bought it a little over a year ago. The brakes got scary enough that they would occasionally go out while I was driving, so I bought all new Calipers, Rotors and Pads, and installed them all today on all four wheels.
I broke the line that comes off the master cylinder to the left front, and replaced it. During the process, the master cylinder drained completely. The new line is solid and dos not leak. I refilled the MC, and bled the brakes starting farthest away from the MC, and got all the air out of the lines. The brake pedal is very, very hard when the truck is off. When the truck is on, it goes straight to the floor. The brakes were bad before, but at least I had pedal!
Now I'm trying to figure out how to get pedal before Monday so I can drive it for work. So if anyone has any ideas, please let me know, or redirect me to a post I may have overlooked. Thanks!
 
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Old 11-24-2016, 12:42 AM
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UPDATE

RockAuto sent me two right rear calipers it appears, I should have realized the bleeder on the bottom on the drivers side caliper.

But my next question is, would the amount of air in one out of four calipers still cause the pedal to go all the way to the floor? If I slam on the brakes, straight to the floor, I need to have at least 15-20 feet in front of me before I can expect to come to a complete stop. There's no stiffness in the pedal until the very last inch or so.
 
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Old 11-24-2016, 09:28 AM
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Can you get the pedal to "pump up" if you pump it quickly? If yes, than there's still air in the system.
 
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Old 11-24-2016, 09:36 AM
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No pumping up with the engine on, its straight to the floor regardless. With the engine off, its stiffer than I've ever felt it
 
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Old 11-24-2016, 09:53 AM
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Originally Posted by stowbilly96
RockAuto sent me two right rear calipers it appears, I should have realized the bleeder on the bottom on the drivers side caliper.

But my next question is, would the amount of air in one out of four calipers still cause the pedal to go all the way to the floor? If I slam on the brakes, straight to the floor, I need to have at least 15-20 feet in front of me before I can expect to come to a complete stop. There's no stiffness in the pedal until the very last inch or so.
Yes.......
 
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Old 11-24-2016, 10:31 AM
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If the master cylinder drained you probably also have air in the ABS system, you will need a high end scanner like the Ford IDS, there are others that will work also, to do a "service bleed" on your truck, it is the only easy way to get the air out of the ABS system. You also may still have air trapped in the master cylinder unless it was perfectly level when you bled it, that's why bench bleeding is used on a new master before installing it.
 
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Old 11-24-2016, 07:56 PM
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Bleed the outlet from the master cylinder before going further.
 
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Old 11-24-2016, 11:06 PM
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Originally Posted by stowbilly96
RockAuto sent me two right rear calipers it appears, I should have realized the bleeder on the bottom on the drivers side caliper.

But my next question is, would the amount of air in one out of four calipers still cause the pedal to go all the way to the floor? If I slam on the brakes, straight to the floor, I need to have at least 15-20 feet in front of me before I can expect to come to a complete stop. There's no stiffness in the pedal until the very last inch or so.
Had the same issue on my 06 with an upside down replacement rear caliper, The route I took to remedy this quickly was to remove the offending caliper from its bracket, turn it right side up and wedge a block of wood into it and proceed with the bleeding the brakes with a block of wood in it.
Some models of Super duties had one caliper in front and one in back on each side and others had both on the back on the rear axel.... makes it complicated trying to get the correct parts.
 
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