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Old 06-04-2018, 07:27 AM   #11
Truck55
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Are you starting the motor and operating the power assist?

Yes bleeding them with motor running
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Old 06-04-2018, 01:29 PM   #12
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Default Bleeding system

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Yes bleeding them with motor running

I have never done a motor home before but when I do cars and trucks with power brakes we always bled the system with the engine off and checked when done with the engine running and the power assist on. You say you are getting a solid stream. How about the Parking Brake. I have a yellow knob that pulls out to lock the brakes. I have read that there are two versions of the system. One used the power steering pump to create pressure but the second version like I have has a dedicated pump that pressurizes the brakes and serves as a Parking Brake.



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Old 06-04-2018, 01:49 PM   #13
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Default Parking Brake System

Dan;


Look here for some info. I haven't read it all and haven't seen any "bleeding" references yet but it will explain how it works and that may help a lot.


http://www.rvautopark.com/

http://www.rvautopark.com/faq/bleedi...-brake-system/

Read these and see if they apply.

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Old 06-05-2018, 05:05 PM   #14
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I have F-53 Ford chassis. So no auto park. This is the 3rd motorhome I've had. They have all been F-53 chassis. I've done calipers and brakes on all of them. This on is the only one I've had trouble bleeding the air out. The other 2 were a 94 and 96.
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Old 06-05-2018, 05:25 PM   #15
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I have F-53 Ford chassis. So no auto park. This is the 3rd motorhome I've had. They have all been F-53 chassis. I've done calipers and brakes on all of them. This on is the only one I've had trouble bleeding the air out. The other 2 were a 94 and 96.



Eye Sea!


I thought for some reason that you were working on a Workhorse with the big brakes and calipers. In that case I almost out of ideas. Have you checked to see if the master cylinder is leaking out the back. This will sometimes show by fluid dripping from power boost diaphragm can. You can sometimes see the air bubbles if you have someone slowly depress the pedal with the cap off and the system full. I had one once that was leaking internally and was a real female dog to find. Good luck, keep me posted.


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Old 06-06-2018, 09:49 AM   #16
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Try driving it around some. Sometimes that works.
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Old 06-06-2018, 11:36 AM   #17
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I have F-53 Ford chassis. So no auto park. This is the 3rd motorhome I've had. They have all been F-53 chassis. I've done calipers and brakes on all of them. This on is the only one I've had trouble bleeding the air out. The other 2 were a 94 and 96.



I sure would like to see a picture of your MH. Is it like mine but on the Ford Chassis?


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