Reg Posted November 29, 2012 Share Posted November 29, 2012 The quick relief type valve on the firewall is constantly leaking air, how do I find the source of the leak? Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/ Share on other sites More sharing options...
marvgarr Posted November 29, 2012 Share Posted November 29, 2012 do you mean the brake valve........ what kind of trk....... pics...... could be brake chamber bleading through innner seals in maxi's Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/#findComment-148664 Share on other sites More sharing options...
Reg Posted November 30, 2012 Author Share Posted November 30, 2012 It's the valve on the firewall with many air lines to it, near the antifreeze reservoir. Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/#findComment-148734 Share on other sites More sharing options...
Reg Posted November 30, 2012 Author Share Posted November 30, 2012 Oh and it's a 96 CH 613 Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/#findComment-148735 Share on other sites More sharing options...
marvgarr Posted November 30, 2012 Share Posted November 30, 2012 that should be your brake valve e6 I believe if its leaking out the the rubber flat on the back could be a brake chamber back feeding through or relay valve or the valve it self take some needle nose vise grips and pinch off each supply hose to each brake chamber tell you find it dont use the same vise grips buy four of them if you dont have them already sometimes you have more then one chamber feeding back if the air does not stop remove your signal line to your relay valve and see if there is air coming out of valve through signal port the signal line is from e6 brake valve (the one that is leaking) to the relay valve should be on top of valve if there is no air then I would suspect your brake valve is bad Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/#findComment-148781 Share on other sites More sharing options...
Reg Posted December 4, 2012 Author Share Posted December 4, 2012 Thank you sir... I've been away but will try this now, thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/28607-leaky-valve/#findComment-149386 Share on other sites More sharing options...
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