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Brake problems

showcrop

showcrop

Well-known Member
Last Sunday coming back from a pull with a 13,500 load on my 22,400 gooseneck, the brakes on my '06 Super Duty overheated. There were very few hills. No hard stops, and never any problem slowing or stopping. They got hot to the point that it was pulling a little to one side, and at the repair shop they found that the rubber boots were partially melted, but the slides were all free. It has been approx 20K since the brakes were done, and 80K altogether. What could have caused this? The shop thinks maybe contaminated fluid. I have never had the top off. The truck has been driven very little in the winter in the last six years.
 
check the rubber brake lines at the caliper. the inner lining can degrade and it causes kind of a flap that will hold brake pressure in the caliper.
 
An automotive shop shouldn't say they think it's contaminated fluid. If you suspect too much moisture in the fluid they have testing that can be done. If they suspect another fluid, remove some fluid from the master cylinder and put it in a clear container. If there was the usual chemical contamination it should be evident since they may not mix. Usually if a petroleum product was put in the rubber seal will swell. If the front wheels rotate freely after they are at operating temp., it's probably not a brake hose. If that is the case I would suspect the trailer brakes. Melting the rubber from calipers requires a lot of heat.
 
common problem on fords especially if they sit around too much.My 2008 did the same thing,first the driverside front then the
passengers side shortly after.Replaced both caliper assemblies and fixed.
 
(quoted from post at 15:30:58 09/04/15) common problem on fords especially if they sit around too much.My 2008 did the same thing,first the driverside front then the
passengers side shortly after.Replaced both caliper assemblies and fixed.
Click to expand...

Were they still loose and sliding freely like mine or rusted stuck?
 
Im guessing lack of lubrication(dry).If rubber gets bad dirt and grime enter but only causes random dragging.Again just a
hunch.could probably clean them up and put neverseize on rod if it hasnt gotten too hot
 
(quoted from post at 17:58:10 09/04/15) Im guessing lack of lubrication(dry).If rubber gets bad dirt and grime enter but only causes random dragging.Again just a
hunch.could probably clean them up and put neverseize on rod if it hasnt gotten too hot
Click to expand...

Mine were not dry or dragging. Still nice and slick. You should use the correct high temp brake lube on them as opposed to Never Seize
 
Correct for pistons not getting neverseize.I placed neverseize on slider pins(dual piston calipers).IMHO the super duty design is
not very good on brakes.Easy to work on but still not happy with them.
 
Everyone is talking about the brakes on the truck. What about the brakes on the trailer? If they are not adjusted or worn or just not working, the truck brakes are stopping all that weight. Any truck brake would overheat.
 
Ditto what JT said. how are he trialer brakes / controller?

I pull a similar load with 2 old 1999 fords.. a 350 and a 450. never had brakes overheat. not locally, not as far away as NW texas and back, round trip... truck never got shut off. ( from florida )
 
(quoted from post at 17:40:13 09/06/15) Everyone is talking about the brakes on the truck. What about the brakes on the trailer? If they are not adjusted or worn or just not working, the truck brakes are stopping all that weight. Any truck brake would overheat.
Click to expand...

As in the original post, very little in the way of hills, and no hard stops. With the engine braking system, literally just a tap of the brakes and engine braking takes over until you step on the gas again.
 
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