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· Member
480 Posts
Does your dump valve look like this?
If so, it must be plumbed in AFTER the ride height valve, or it will cause exactly the problem you are describing i.e. it must be between the ride height valve and all of the air bags. switching ports on the dump valve would also cause the same problem. Not running all of the air bags through the dump valve could also cause this problem.

The leveling valve is the problem, not the dump valve. The dump is before the leveling valve.

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