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Old 10-07-2022, 07:15 AM   #1
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wabco abs

while changing right front caliper and bleeding brakes I lost fluid to right front wheel. no fluid coming from the Wabco abs unit. all the other wheels work fine just no fluid to right front wheel on my 2003 holiday rambler ambassador on a road master chassis. any and all help appreciated.
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Old 10-07-2022, 07:29 AM   #2
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Did you have the ignition on when bleeding the caliper? The ABS module has to be powered up.
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer
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Old 10-07-2022, 11:31 AM   #3
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wabco abs

I do not think so but since then I have tried with it on,off, and running still nothing
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Old 10-10-2022, 07:42 AM   #4
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wabco abs

problem solved. My brake system had really dirty fluid in it and one valve stuck in the abs unit while bleeding the brakes. The abs unit was mounted in between the frame in the large compartment you have to take the frame cover off to get to it. I removed the abs unit and blew air through the valves to clean it out and the stuck valve released I then took a rubber hose and connected the line from the master cylinder to each wheel line and pushed clean fluid through replaced abs unit bleed all wheels and all brakes are working fine. hope this helps someone else.
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