Why Is My Dump Truck Air Pressure Going CRAZY?

[@SeidelRanch]

This is a new learning experience for me, and I want to fix it myself so I know more about it. What is going on? Do you know what is happening here?

[@JimBobZee]

I know this isn't much help. But I would put a mechanical test gauge on air tank #1 and see if the test gauge matches the dash gauge.

[@SeidelRanch]

That's very helpful. I need to make sure the gauge or sensor on the tank is correct. It could end up being a sensor issue. Thanks.