Hi Dennis,
Have you checked the ground wire? Mine was giving me this kind of problem for over a year until I removed the ground connection, sanded it, and reinstalled with dielectric grease. Not a problem for 3 years now.
Best,
Gary
Hi JimJ,
I know this may be just a fluke, but I was having the same problem in my ISL . It was intermittent but always sprang back. I then got a check engine light and the error code said replace the CCV filter. I did this (on my coach very easy) and the problem with the gauge ceased.
Not sure if the filter change was the reason for the problem fix, but have you changed the CCV filter in a while?
gary
My Dynasty is a 2008 with the PowerGear air leveling system. I had the same issue with the front right bags. I replaced 1 valve and all 6 solenoids in the front leveling manifold. This solved the issue for me.