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So I was replacing an air bag today as we knew it had a leak. I also noticed on the back side of the control box there also appeared to be a leak. Upon further inspection, air was escaping from what I later found to be a small breather valve. So new airbag installed, air up the system and it works great, no leaks from the airbag. The breather valve continues to leak (more on this in a bit), but cab suspension inflates and stays inflated. Test drive and what a world of a difference having working cab air bag system. When we get back, we shut the truck off and the cab stays up and the air vent on the back of the control box does not appear to be leaking air. Turn the cab airbag control knob off and the air vent begins to leak. We turn the power back on in the truck and air pressure still steady at 120. Turn the cab air bag system back on and fills the airbags, but that breather valve starts leaking again. Should this breather valve be constantly leaking air when the system is on? My concern is this. Assuming the system has a one-way valve and airs up but closes when the cab air bags are full, should the air vent still be letting air out?
New to the trucks and learning as I go. I have been reading the TM's as best I can as I go but haven't found anything yet about that valve as we had not noticed this before when assessing the cab airbag lines for leaks. Thanks in advance for all of your advice and comments.
New to the trucks and learning as I go. I have been reading the TM's as best I can as I go but haven't found anything yet about that valve as we had not noticed this before when assessing the cab airbag lines for leaks. Thanks in advance for all of your advice and comments.