What causes the leans?

[CC_Guy]

If you print your air drawing large enough you can get a good since of air flow and valve functions. To help troubleshoot the problem you can do a couple of things.

After turning off the key, dump your aux air. This will speed up the leans if it's the level low valve.

Raise the tag to isolate the tag bags and tag valves from the problem.

If it only leans when it's cold you should suspect a push-on fitting. The fitting has a sealing o ring that tends to leak when cold as they age.