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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

93' f350 brake problems

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Old Oct 15, 2010 | 08:43 AM
  #1  
wahlturfcare's Avatar
wahlturfcare
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93' f350 brake problems

my 93 f350 4x4 last week had a parking break bind up and stay on on the right side last week while driving. After i tore the pads off the wheel cylinder started leaking so i replaced it and the line on that side too.
But now after bleeding everything the pedal/braking power is not there like it was before i took it apart. I have power to the pedal with the truck off and barley any with it running.
The booster isnt leaking and holding vaccumn.

I cant get any more air out of the lines either.

Could the master cylinder all of a sudden gone out?
 
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Old Oct 15, 2010 | 09:27 AM
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Lazy K
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When bleeding the rear brakes did you bleed the RABS module on the left side frame rail? If not you will need to do it to get all the air out.
 
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Old Oct 15, 2010 | 09:31 AM
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wahlturfcare
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i didn't but was just thinking of doing the poportioning valve. Is the RABS up under the cab?
 
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Old Oct 15, 2010 | 09:41 AM
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It is bolted to the inside of the left side frame rail about level with the drivers feet. It has two brake pipes attached to it and a short wiring pigtail. There is a bleed screw on it. Just bleed it like the wheel cylinders.
 
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Old Oct 15, 2010 | 10:22 AM
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i got it to bleed and still couldnt get any air to come out of it and i tried the the others but am getting alittle of the pedal back now.
 
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Old Oct 15, 2010 | 11:40 AM
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Also make sure that the rear shoes are fully adjusted up.
 
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Old Oct 15, 2010 | 02:01 PM
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From: Markesan
Im with the make sure the shoes are turned up!! Been there missed that!
 
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