Air Suspension Question

[Steve Johnson]

When airing up our suspension (switching the Susp Dump switch) I
noticed that sometimes the bus did not air up evenly. The first time
I noticed the problem, the passenger side came up and the driver's
side did not. Another time it was the opposite. Both times, I dumped
the suspensiona and tried it again, and it seemed to come up OK. But,
several times I noticed that one side came up faster than the other.
There were even a few times running down the road that I thought I
felt the bus lean one way or the other. Any suggestions on what I
should check?

Thank you,

Steve Johnson
Grand Rapids, MI
'82 FC35