Think I found my air leak

[j_boucher]

Since I got the truck been trying to find where I have a small air leak , I believe I found it today , the cab level adjustment (don't know the real name) small square looking box , well under it I hear pretty good air source from those little air lines . The adjustment box works fine though

 

[MatthewWBailey]

Since I got the truck been trying to find where I have a small air leak , I believe I found it today , the cab level adjustment (don't know the real name) small square looking box , well under it I hear pretty good air source from those little air lines . The adjustment box works fine though

I have that same leak. It's the cab leveling air valve. There's a rebuild kit or you can just buy a replacement. Mine leaks profusely

 

[ckouba]

This might be Captain Obvious but be advised it will vent when the cab does its leveling. When I climb out, it will hiss until the sensor thinks the cab is level again.

 

[MatthewWBailey]

This might be Captain Obvious but be advised it will vent when the cab does its leveling. When I climb out, it will hiss until the sensor thinks the cab is level again.

. Mine seems to hiss continuously albeit at different levels and tones. If I turn off the manual valve on the control station (lower right knob), it stops and I can hold air for a couple days. If I leave that on, all the air leaks out in about 4 hours.

 

[Ronmar]

I just noticed mine leaking a little yesterday when I was welding on my floor ribs for my habitat build