Hi there, hoping someone can help me, last week we started driving and lost the front air bags on the coach, after i pulled over and inspected I found that the air bags had deflated. Thinking it was the control valve I replaced it, this is the valve that adjust air to bags from suspension. I found that was not the problem, I found the 1/4" pneumatic line going to that valve is telling the air bags to deflate. I capped that line and air bags instantly started pumping up. I cannot see where that line goes to, I think it goes to a 3 way Norgren valve mounted towards the front of the coach but not sure. Anyone have any info on this? Thank You.