[rheavn]

Here is the air system diagram for the rear suspension on a 90s and early 2000 coaches. Note: The tag tank appears as one tank, but is actually two tanks that are separated inside and act independently.

[Richard]

Thanks Steve for posting the diagram you worked out.

This is one handy picture for diagnosing air system issues.

[rheavn]

I don't take full credit for this diagram. Richard & I worked together on this project and the diagram is a combination of both our work!

[Richard]

Steve is too modest, I take no credit. Steve spent hours crawling under the coach and tracing airlines. My tiny effort was just as logic checker on the airlines and valves.

Of course if you have the separate air regulator and two six packs in the back, this diagram is not accurate for your rear suspension.

I think Newell may have gone back and forth on the regulator setup. Mine is a 95 and doesn't have it, however, I did see a 97 once (originally built for Geoff Bodine) that had the regulator setup for the tag.