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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Squishy Brakes

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Old Dec 16, 2015 | 12:47 PM
  #1  
Hammer77's Avatar
Hammer77
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Squishy Brakes

Hello Everyone. I've checked out some places on the forum but can't seem to find what I'm looking for. I've got a 1985 F-250 with the 351Windsor.

I'm having a problem with my brake pedal sinking to the floor when I brake at anything over 10-15 mph (around town they work fine). I've replaced one of the rear wheel cylinders and it looks to be that the previous owner replaced the other side not too long ago. I've also bled the system a couple of times. (NOTE: I have only bled the rear because I can't seem to loosen the bleeders! Ugh!)

Can anyone help me?!!
 
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Old Dec 16, 2015 | 01:19 PM
  #2  
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Galendor
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From: North Carolina
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I would try doing everything necessary to also bleed the front. Soak the bleeder screws in a penetrating solvent overnight.
You may have to put the front up on jacks and remove the front wheels to get good access to the front bleeder screws.
If they are really stuck, I have even had to use large vise-grip pliers to remove the bleeder screw. This will ruin it, but you should replace them with new ones anyways. Wrap the new replacement bleeder screw threads with teflon tape when installing, to help prevent the new ones from being stuck in the future.
Welcome to the forum!
 
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