2 or all 4 brakes sticking??? Need tech input - Ford Powerstroke Diesel Forum
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Old 05-02-2013, 11:16 AM
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2 or all 4 brakes sticking??? Need tech input

Okay, so I'm hoping the end of this story is master cylinder and all my bleeders turn out not to be rusty like the rest of my truck and come loose easily...

Xtra Details not in sig line: Truck is an 4x4 with 4 wheel antilock and cruise control

Symptoms: lately I've noticed that when i come to a stop the truck has stopped rolling freely, almost like the parking brake is lightly set (but it isn't, in fact it's too loose to function) and I sometimes feel resistance when rolling and smell a bit of a burning brake smell. I thought at first it was probably just a sticky caliper pin, however, a few times ago I checked for heat after it happened and it felt like 2 on one side were possibly hot. (I just did rear rotors and am pretty confident I did a good job lubing the pins.) Today it was sticking pretty badly and when i checked, all 4 wheels were hot, like the actual rims got hot to the touch and I could feel heat coming off all 4 rotors. it doesn't happen every single time but seems to be getting more frequent.

I've never had this happen before. I'm guessing this is probably a sticky master cylinder? But I'm also worried it could be signs of a failing anti-lock controller or something else I'm not thinking of. Anyone have a similar experience or good knowledge of this braking system that could give me some input before I just buy the master cylinder and start cursing about how stupid it is to have bleeders that inevitably freeze stuck by the time they need to be used for repairs.
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Old 05-03-2013, 12:50 PM
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I am having similar problems. About. A month ago the driver rear caliper stuck, then without intervention, started working again. Then on Wednesday the driver front was sticking. That will get some attention this weekend because it got very hot and will need to be taken apart and the hub inspected. Not to mention new rotor and pads. It has been parked ever since.
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Old 05-26-2013, 05:05 PM
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Easy fix take the caliper off and pull the sliding pins and clean them up and reinstall them with anti-seize high temp also apply a small amount where the end of the pads sit in alignment. Did mine a month back worked like a charm...
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Old 07-24-2013, 02:30 PM
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This turned out to actually be the master cylinder. Bleeding the system took a long time even though I pre-bled the MC on the bench, it still took a while to bleed out at the connections once I installed it. Thankfully, i didn't end up having to bleed it at the wheels... until my rear brake lines failed a few weeks later....
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Old 07-26-2013, 02:39 PM
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I had this same problem however mine started out with the brake booster leaking bad. I replaced that and the MC at the same time. Shortly after that I thought it was just the right rear sticking. I replaced the caliper, pads and rotors....still getting hot. Replaced the right rear brake line.... still hot. The hubs seemed to be getting really hot so I replaced the rear hubs and bearings. All 4 brakes are dragging and getting hot. I took put the 60 amp fuse for the ABS module.......still hot. I'm at a total loss now. Anyone think I could have gotten a bad MC? Thats the only thing I can think of. I bench bled the new one, could it need to be bled again? I bled all 4 wheel until new fluid came out of each. Trying not to take it to a shop but I'm almost at that point, help, please!
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Old 07-26-2013, 03:18 PM
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I have the same problem with my 02 Excursion especially stop and go. I think my parking brake shoes may be the problem. The ford backing plates are known for going bad where the hold down pins are. My friend had to take his parking brake shoes out of his 03 in the parking lot while at the Jersey Shore. When I worked at the dealer we stocked 2 sets of each side and 2 sets of rear calipers. Not looking forward to this deal with the lift and 35's.
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Old 07-26-2013, 03:27 PM
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More than likely you got a bad replacement MC. Where did u buy your replacement?

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Old 07-28-2013, 12:17 PM
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This is probably a dumb thing, but are you sure you didn't over-fill the new MC? overfilling can cause brakes to stick as well. If you're over the full mark, try drawing a little fluid out and see if that helps.
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Old 07-28-2013, 12:31 PM
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My driver side front caliper locked up & released several times on a 4 hour round trip. I changed it out when i got home. Under the advice of a shade tree I changed out the lead hose also. He said there has been many cases where the hose tears on the inside and causes a 'check valve' effect.


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