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shuttle valve ???

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  #1  
Old 07-18-2009 | 03:32 PM
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Default shuttle valve ???

what are the symptoms of a bad one?
 
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Old 07-18-2009 | 03:35 PM
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3 amigos
 
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Old 07-18-2009 | 03:48 PM
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well yeah,,,

but i mean is there a feel in the brakes or something you can feel in the brakes,,,
 
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Old 07-18-2009 | 03:55 PM
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I have no idea, I know that it can set them off but I think the only way to know is if it throws the shuttle valve code which I dont know what those numbers would be.
What is she doing? Do you just have Chevy, Martin and Steve on your dash?
 
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Old 07-18-2009 | 04:04 PM
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feels as if the brakes transfer power from the rear to only the fronts. its a odd feeling
 
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Old 07-18-2009 | 04:08 PM
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Hummm...feels like all fours are grabbing then all of a sudden it only feels like the fronts are working...maybe the shuttle valve.
Have you flushed the brake fluid on this thing yet?
 
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Old 07-18-2009 | 04:32 PM
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yeah it feels like all 4 grab and then it suddenly transfers to only the fronts.

i was gonna flush and bleed and see if that helps.
 
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Old 07-19-2009 | 10:11 AM
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The front brakes on all vehicles are designed to have more stopping power. Are your 3 amigos on, are your brakes squealing? If you throw a panic stop, when the 3 amigos are on, can you feel the ABS pulsate thru the brake pedal?
 
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Old 07-19-2009 | 10:44 AM
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Originally Posted by Disco Mike
The front brakes on all vehicles are designed to have more stopping power. Are your 3 amigos on, are your brakes squealing? If you throw a panic stop, when the 3 amigos are on, can you feel the ABS pulsate thru the brake pedal?
But you are forgetting Mike that LR uses equal brake force distribution, meaning that equal braking power goes to all four wheels at the same time.
Thats why there are 4 brake lines coming out of the shuttle valve not 2 like most cars where it gets split at the axle to go to each wheel.
It is also known as 4 channel braking.
 
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Old 07-19-2009 | 10:51 AM
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But they don't, and I am trying how to best describe how the system works.
Yes there are 4 lines from the master cylinder to the module and 4 out but the module does not regulate the pressure, just the activation.
If you think about it, you always go thru about 1/5 sets of front brake pads to 1 rear set, the rear pads and rotors are smaller then the front. I am going to get some more specific information and get back to you.
Take care,
 


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