[Jrahn56]

Coach #375, chasing air pressure issues. The 6 pack selinoids are they rebuildable or do you need to replace them. The gauge on top shows 80 psi, but all others show 0.
Can anyone help me on diagnosing my problem. 

Thanks,

Jeff

[cwl1979]

In the first picture that's an oil water separator and its most likely plugged up. Grab a new one on amazon. Just to test the rest of the system you can bypass it and make sure everything else is working. I would imagine that will solve your air issue. As for the "frozen" regulator knob, push it in and then turn. It has a lock on it.

[Jrahn56]

Thank you.