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2009 f250 front brakes locked

 
  #1  
Old 05-15-2019, 05:15 PM
jt2009
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2009 f250 front brakes locked

Hi,
I searched the forum, but didn't see anything that was exactly the same. This happened on a 2009 f250 5.4l 4x4 auto xlt

The other day I was driving and after a stop noticed my truck was really sluggish. No power to accelerate and it would shake over 40mph. It also took turns pulling to each side. I kept driving for a while and it would get a little better the less I used the brake and worse the more I used it and if I braked quite a bit, the pedal would get hard. I stopped and shut the truck off and found both fronts locked. I threw some water on all the wheels and steam came off the front, nothing off the rear. Sitting there a while I could hear/feel the brakes slowly starting to let go as pressure came off. I was parked on an incline. I've replaced both rubber lines and calipers in the last year due to the lines collapsing. This happened at different times. The calipers didn't really need it, but I was in there doing the lines anyway. I also had the cruise control switch on the master cylinder blow apart in the last year. After about 1/2 hour the brakes were completely unstuck and I've been driving ever since with out an issue.

It hasn't happened again yet, but we're getting into camper season and I'm wondering what I can do to avoid getting stuck somewhere.

Any thoughts on what the culprit is?

thx
 
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Old 05-15-2019, 09:15 PM
Djosbun
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Id replace the caliper pins with Ford pieces and use the high temp caliper grease on them. Possibly swap them out every year to prevent future issues.

Dave
 
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Old 05-15-2019, 09:59 PM
jetjockey99
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Carry a wrench that fits the bleeders, if it happens again crack the bleeder and see if there is pressure, it will release it if there is. If there is pressure it is hoses or the master cylinder itself causing the problem, if there is no pressure release and the brakes don't release then it is calipers or pins. Also don't spray cold water on the rotors, if they are that hot they could crack.
 
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Old 05-15-2019, 10:34 PM
geekwithoutacause
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slide pins stuck. Well known issue. Should remove them, clean them and use high temp brake grease.
 
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Old 05-16-2019, 06:37 AM
Chuck's First Ford
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all above information is correct....

its a cascade affect... more heat, more friction, more heat.. the tighter the grip on the rotors...

fluid not returning to master cylinder chamber... or mechanical... like slide pins..
 
  #6  
Old 05-17-2019, 07:52 AM
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I would recommend a complete inspection of those rotors, they may have cracks or became warped due to splashing water on them.
 
 


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