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iceracer
Active Member

32 Posts

Posted - 12/14/2015 :  6:16:57 PM  Show Profile  Visit iceracer's Homepage  Reply with Quote
I have a '08 Vision with the following issue:

When the bus is in an ABS event(ice/snow), I can get all 4 corners to lock up, with no ABS light coming on. I can faintly feel a pulsing on the pedal. My BB dealer was out with me and had the laptop hooked up, it was indicating the ABS was working, even with the wheels locked up. We also created a skid on dry pavement, with the same results.

Is it possible for the valving to be blown out? We don't like the idea of just throwing parts at the problem...

Any thoughts?

Edited by - iceracer on 12/20/2015 07:55:21 AM

slippert
Top Member

USA
630 Posts

Posted - 12/15/2015 :  09:35:11 AM  Show Profile  Click to see slippert's MSN Messenger address  Reply with Quote
Hydraulic brake? Air brake?
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iceracer
Active Member

32 Posts

Posted - 12/15/2015 :  10:12:19 AM  Show Profile  Visit iceracer's Homepage  Reply with Quote
Hey- I guess that would help!

hydraulic
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sob
Senior Member

USA
91 Posts

Posted - 12/17/2015 :  12:29:09 PM  Show Profile  Reply with Quote
IIRC, once a vehicle gets under 3 MPH the wheels can and will lock up. But I agree the juiced brakes are a lot less fun to work on versus the Air.

B
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iceracer
Active Member

32 Posts

Posted - 12/19/2015 :  07:34:14 AM  Show Profile  Visit iceracer's Homepage  Reply with Quote
The weird part is how the laptop is showing the ABS is working, but yet I can't feel the pulsing at the pedal, and have wheel lock-up. Also, no warning lights (ABS), and it's saying nothing is bad.
I will continue driving it, but can't really put anyone else in the seat...
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mysterytrain
Active Member

34 Posts

Posted - 12/19/2015 :  3:53:37 PM  Show Profile  Visit mysterytrain's Homepage  Reply with Quote
My guess would be that the dump valves are hanging up, guessing kelsey hayes? lucas varity?
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