RV.Net Open Roads Forum: Emergency Brake System Issue - Please Help.

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Open Roads Forum  >  Class A Motorhomes

 > Emergency Brake System Issue - Please Help.

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LAZRCNG

Uniontown, OH

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Posted: 03/10/12 03:45pm Link  |  Print  |  Notify Moderator

I have a 2001 Georgie Boy Cruise Master. It has an auxillary emergency brake system on it. If the engine shuts off and you push the brakes an electric braking system takes over.

Today when the RV is shut off the auxillay emergency brake sytem does not shut off it stays running. When you start the RV it goes off and when you disconnect the engine battery it shuts off.

Anyone have this same issue that knows why it is doing this?

Thanks


2001 Georgie Boy Cruise Master V10 Ford
1994 20ft. Haulmark Race Trailer
1994 Don Davis 27 Roadster Super Gas NHRA


T18skyguy

Eugene, OR

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Posted: 03/10/12 03:52pm Link  |  Print  |  Notify Moderator

This is a very wild guess, but it might be an issue with a bad or sticking relay in the system. Perhaps someone with that chassis will chime in.


Retired Anesthetist. Pilot with mechanic/inspection ratings.1996 Jayco C 22 foot with 460/Banks Powerpak/Bilsteins.Wife and daughter. Two cats which control my life. 1975 Ford F-250, 84 Coupe Deville, Thorp T18, tons of tools and tons of junk.

wolfe10

Texas

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Posted: 03/10/12 04:42pm Link  |  Print  |  Notify Moderator

What chassis? If Chevy/Workhorse, contact Roger, the is extremely knowledgeable and helpful. Be sure to have all the information he has requested so that he can properly guide you through the troubleshooting.

http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/25281517.cfm


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ronfisherman

SE Michigan

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Posted: 03/10/12 05:10pm Link  |  Print  |  Notify Moderator

Check the brake pedal switch.


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wa8yxm

Wherever I happen to park

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Posted: 03/10/12 06:35pm Link  |  Print  |  Notify Moderator

ronfisherman wrote:

Check the brake pedal switch.


x2

There are two ways to check it.. A very quick check by putting you tow under the pedal and pulling UP.

NOTE: This should not work and indicates a problem elsewhere.

Workhorse chassis RV's have had a couple of brake issues. One of them is the bell crank under the hood.. Pre 2005 they had no grease fitting and over time they got gunked up rusted and would bind causing the pedal to not fully return. Or so it was believed at least.

2005.5 and newer have a zerk.


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MountainAir05

New Mexico

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Posted: 03/10/12 04:17pm Link  |  Print  |  Notify Moderator

Check the fluid level on the power steering. The noise you hear is a electric motor. Also check the brake fluid on the master cylinder. Do not intermix the fluids. Power steering is that type fluid and the brakes are regular brake fluid. Manual is in the coach in storage and some distance away. Will see if I can find you a link.


For reference, the Brake light is coming on because the differential pressure transducer is detecting a difference in pressure between the forward and rear systems. The Hydroboost light is indicating a loss in flow (via the flow switch) from the power steering pump supply side which is resulting in the electric emergency backup pressure pump to run (only used in emergency backup mode). The only other things that can cause all this is a defective Monitor Control module, loose connections, or low power steering fluid level (maybe loose PS belt?).

PM me and send me a email and will send you a manual

* This post was edited 03/10/12 04:25pm by MountainAir05 *

LAZRCNG

Uniontown, OH

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Posted: 03/10/12 06:49pm Link  |  Print  |  Notify Moderator

Thank you all for suggestions to check, I will check all of them. It is a F53 chassis with Ford V10.

We diconnected the engine battery and it is good for the night. Tomorrow we will be back at it.

LAZRCNG

Uniontown, OH

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Posted: 03/11/12 04:57pm Link  |  Print  |  Notify Moderator

Upon further inspection all of the wiring up under the dash to the system is fried and all melted together.

I wonder if it got a short somewhere and melted all together thus causing it to stay on??

Uh!

2bzy2c

California

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Posted: 03/13/12 11:16am Link  |  Print  |  Notify Moderator

Uh ohhhh.....Sorry to hear that


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