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brake keeps locking up

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Old Apr 13, 2015 | 05:23 PM
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brake keeps locking up

I have 03 f250 with a 7.3 my brakes will be fine when i first start to drive then the front left caliber will start to lock up and my brake petal will get tight by the time i get home its locked up. If i let it sit for a while it will free back up and everything will be fine for a while I've replaced the fluid calipers rotors and checked the lines no matter what it always comes back any ideas
 
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Old Apr 13, 2015 | 05:27 PM
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Could be one of the hoses is delaminated internally and is collapsing under pressure, but relaxes back into position once the pressures are re-normalized again after shutting down.

Otherwise, I would first think that either a caliper slide pin or piston is sticking.
 
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Old Apr 13, 2015 | 05:34 PM
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Ive replaced the calipers and slide pins twice the only thing I haven't replaced Is the rubber brake line is that the one you were talking about
 
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Old Apr 13, 2015 | 11:52 PM
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That's what he is saying. Give it a try and report back.
 
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