Is it normal for air to rush out of the Hydraulic Control Manifold breather when the cab air bags are activated?
I haven't had working cab air suspension since I got the truck because the passenger side bag had a leak in it. I just replaced the passenger side air bag and set the controls on the hydraulic control manifold to raise the air bags. They seemed to inflate fine, raising the cab by 2-3 inches. But I could hear an air rushing noise and noticed air rushing out of the "filler breather cap" (#5 on the diagram) at the bottom backside of the control manifold. Is it supposed to do that when air bags are inflated? If not what would cause that? My truck has the CTIS system deleted, but not sure if that has anything to do with this.
![d1.jpg d1.jpg](https://www.steelsoldiers.com/data/attachments/507/507198-f398db3ee2d43e333756879628f62d8b.jpg)
![d11.jpg d11.jpg](https://www.steelsoldiers.com/data/attachments/507/507199-1e79e3e60fd0a6c56ac59d035d2c5028.jpg)
#5
![thumbnail5.jpg thumbnail5.jpg](https://www.steelsoldiers.com/data/attachments/507/507200-f2b2a99ebce6d748af60d23da9d5a9bc.jpg)
The back side of the manifold. Its the thing at the bottom.
I haven't had working cab air suspension since I got the truck because the passenger side bag had a leak in it. I just replaced the passenger side air bag and set the controls on the hydraulic control manifold to raise the air bags. They seemed to inflate fine, raising the cab by 2-3 inches. But I could hear an air rushing noise and noticed air rushing out of the "filler breather cap" (#5 on the diagram) at the bottom backside of the control manifold. Is it supposed to do that when air bags are inflated? If not what would cause that? My truck has the CTIS system deleted, but not sure if that has anything to do with this.
![d1.jpg d1.jpg](https://www.steelsoldiers.com/data/attachments/507/507198-f398db3ee2d43e333756879628f62d8b.jpg)
![d11.jpg d11.jpg](https://www.steelsoldiers.com/data/attachments/507/507199-1e79e3e60fd0a6c56ac59d035d2c5028.jpg)
#5
![thumbnail5.jpg thumbnail5.jpg](https://www.steelsoldiers.com/data/attachments/507/507200-f2b2a99ebce6d748af60d23da9d5a9bc.jpg)
The back side of the manifold. Its the thing at the bottom.