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Open Roads Forum  >  Class A Motorhomes

 > Brakes suddenly gone

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usn2beagles

Home Base,Greenfield,NH

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Posted: 09/06/11 11:48am Link  |  Print  |  Notify Moderator

I respectfully strongly disagree with this statement! Have seen it more than a few times on customers vehicles and have had it happen to my class a ,, total loss of brake pedal, right to the floor ,once cooled down pedal and brakes back to normal until next time the fluid overheats..Never had to bleed them after they failed.. failed
Tom_Anderson wrote:

If you boiled your fluid, your brakes would not have gone back to normal after they cooled down. They still would have been full of air and you would have had to bleed them. Sounds more like a typical case of brake fade to me.



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Stim

NE Florida

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Posted: 09/06/11 06:14pm Link  |  Print  |  Notify Moderator

While you are changing the brake fluid you need to change both front brake hoses that go from the frame to the calipers. The P chassis are known to have these hoses go bad and they fail internally acting like a check valve not releasing the brake and will cause that wheel to drag and pull to that side.
I had it on a 1983 Winnie and my 1989 Southwind.
The good news is both hoses were less then $50. from NAPA. I suggest taking the old hoses with you to match them up because there is a bracket on the hose that mounts it to the A frame and I think there is a couple different styles.

Gale Hawkins

Murray, KY

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Posted: 09/06/11 08:45pm Link  |  Print  |  Notify Moderator

Stim wrote:

While you are changing the brake fluid you need to change both front brake hoses that go from the frame to the calipers. The P chassis are known to have these hoses go bad and they fail internally acting like a check valve not releasing the brake and will cause that wheel to drag and pull to that side.
I had it on a 1983 Winnie and my 1989 Southwind.
The good news is both hoses were less then $50. from NAPA. I suggest taking the old hoses with you to match them up because there is a bracket on the hose that mounts it to the A frame and I think there is a couple different styles.


This is true and I like to have them replaced with any brake job but I get 100K+ miles on a set of brakes in anything that I drive.

We just had our P30 brakes flushed and had all five rubber hoses replaced. The rears were OEM it seemed and outside looked very healthy but I have not cut them open yet. I think mainly the fronts fail from all of the bending.

I forget what the shop charged but I got a quote a couple years ago from Autozone for $120 for all five hoses.

Tom_Anderson

Concord, CA

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Posted: 09/06/11 09:00pm Link  |  Print  |  Notify Moderator

And in 27 years as a heavy-duty truck mechanic, I've seen it happen many times exactly the way I described it. So I guess we'll just agree to disagree.

usn2beagles wrote:

I respectfully strongly disagree with this statement! Have seen it more than a few times on customers vehicles and have had it happen to my class a ,, total loss of brake pedal, right to the floor ,once cooled down pedal and brakes back to normal until next time the fluid overheats..Never had to bleed them after they failed.. failed
Tom_Anderson wrote:

If you boiled your fluid, your brakes would not have gone back to normal after they cooled down. They still would have been full of air and you would have had to bleed them. Sounds more like a typical case of brake fade to me.






bill h

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Posted: 09/06/11 10:21pm Link  |  Print  |  Notify Moderator

Gale Hawkins wrote:

I think mainly the fronts fail from all of the bending.



And engine heat. Particularly after shutdown.


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