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Old 06-25-2018, 07:46 PM   #1
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Air bags

Have a new situation today. I was under the coach looking for an air leak and found that my passenger side front air bag is not inflating. The other three bags are full of air, just not the passenger front. Any ideas what may be causing this . From the routing of the air supply both the front bags come from the same tank. There is some kind of valve mounted to the frame next to the bag. It has an arm that connects to the leaf spring. Could maybe this have something to do with my problem. Any suggestions will be greatly appreciated. Thanks
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Old 06-25-2018, 07:56 PM   #2
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That is your leveling valve and it maintains the proper fill for your air suspension. There are two valves on the front and one for both air bags on the back axle.
You could have a problem with the valve, but it's more likely that your air bag has cracked and just won't hold air.
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Old 06-25-2018, 08:32 PM   #3
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Well I do not think there is a crack in bag, I do not hear any air coming from bag when I am under it
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Old 06-25-2018, 08:54 PM   #4
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Try unhooking one end of the connecting rod that goes from the valve lever arm to the axle. Then push up or down on the valve arm, see if air now fills the air spring. Do not change the length of the rod, the ride height is critical for many reasons. See if you have documentation on the ride height specifications. Check with your chassis manufacturer or a decent truck shop that might give you the specs.
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