Spotty Parking Brake - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 04-03-2012, 12:28 PM Thread Starter
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Spotty Parking Brake

My parking brake only works sporadically. Sometimes it works fine, sometimes it doesn't. When it bites, it works perfectly, biting early and holding great. When it doesn't, the pedal just goes to the floor and it doesn't hold for ka-ka.

A few release and re-set manuevers, and I can get it to hold. This is mainly a problem for when someone else drives my truck...my inspection guy gave some crap about it (understandable).

I've never worked on rear brakes at all, but I'm thinking that since it works properly sometimes, maybe there is a problem in the pedal assembly or in the cableing assembly before it gets to the brake.

I'm going out this afternoon to start messing with it and wanted to maybe get some feedback before I do.

Are the actual braking mechanisms mechanical or hydraulic?

Thanks for anything y'all might offer.

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post #2 of 14 Old 04-03-2012, 12:31 PM
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The e-brakes are mechanical and cable actuated. As long as the pedal stays down, the pedal assembly is probably okay. Most likely, they're just out of adjustment.

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post #3 of 14 Old 02-18-2013, 12:39 AM
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Spotty Parking Brake

Any luck with this issue op? I have the same problem and I've read that the brake assemblies have had issues with this in the past. Thanks


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post #4 of 14 Old 02-18-2013, 03:49 AM
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i had the same problem. my backing plates had rotted out. napa sells just the replacement backing plates. i can't remember the price but it was fairly reasonable. ford only sold the backing plates with the complete parking brake assembly for around $300 a side if i remember correct.
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post #5 of 14 Old 02-18-2013, 05:09 AM
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Spotty Parking Brake

Ill have to check that out. I assume removal of the assembly is required for inspection?


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post #6 of 14 Old 02-18-2013, 05:11 AM
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Spotty Parking Brake

Wait backing plates on the brakes themselves and not the parking assembly? Was yours intermittent as well


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post #7 of 14 Old 02-18-2013, 05:19 AM
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Spotty Parking Brake

I dont see signatures on my app, what year truck?


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post #8 of 14 Old 02-18-2013, 05:28 AM
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Spotty Parking Brake

05 f250 Harley


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post #9 of 14 Old 02-18-2013, 05:44 AM
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mine did it once or twice then i had grinding metal sounds goin on. the backing plates are at the ends of the axle. the parking brakes are just like mini drum brakes that use the inside of the rotor as a drum. the parking brake shoes are held in by what look like nails with spring clips that hold the shoes in position. the pins (nail looking things) go in through the backing plate through the brake shoe then has a clip to hold it together. my backing plates rotted out where the head of the nail would rest up against the plate. you have to remove the rotors and axle shaft to get the backing plates off. if you climb under the truck and look at the back side of the wheel where the brakes are you will see the backing plate. easy to check. if they look ok i would pull the wheel and rotor and see whats going on in there. mine were extremely rotted out. road salt is brutal.
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post #10 of 14 Old 02-18-2013, 05:51 AM
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Spotty Parking Brake

Mine will hold great sometimes then go to the floor other times. I assumed it was not in the brakes themselves because they work sometimes but ill check it out just to be sure. Thanks!


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