Brake help 1997 freightliner fld

I would say if all lines are hooked up correctly it would be brake valve itself leaking. If it leaked while off the brakes it could be relay valve, but if you pulled signal line it would leak out of line and confirm that.

 

The brake valve is first part of system so if leaking while applying brakes it would have to come from valve. If leaking while you are not applying brakes, if you pull delivery lines off and air is coming out of lines, the relay valve could be leaking causing it. I would make sure nothing is binding while pressing brakes that might move shaft in brake valve to cause leak.

 

probably got a bad brake valve or pedal assembly, id go under and unbolt it and listen close, might have a cut line, or broken fitting or a bad seal in the valve or a leak between the pedal and the valve, http://www.ebay.com/itm/Freightline...ash=item41aafcbe1d:g:oaIAAOSw74FXO4DC&vxp=mtr heres a link to a new one unless you wanna go to freightliner and buy a new one, but first pull it out and check

 

and if they say there isn't a rubber boot then they are lying because there is one, its not very big but still could be an issue

 

yeah man, you ever have any problems with the truck just come talk to me and I can probably tell you exactly whats wrong, might save you some money