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Is the pressure still 7-8? How did you increase the pressure? The air that the relief regulates during a dump is fed back from the dump valves under manual control when you open the deflate solenoid, PCU pressure drops to that relief pressure and the dumps exhaust Trying to get the tires to...

Yep, because the controller is not seeing what it expects to see, ~6-7 PSI. But the plumbing portion won’t care, and would cheerfully deflate the tires to that 20PSI relief valve setting:) So what pressure are you seeing during deflate, and how are you measuring that pressure?

Filters are between the wheel valve and the tire. They would not effect valve operation, only the tires overall ability to transfer air. a wheel valve not closing after a cycle is probably due to A restriction on the truck side of the wheel valve. Basically the truck side cannot vent cleanly...

The filters are on the tire side of the wheel valve, so restriction there would only effect the speed at which the tire inflates or deflates, not valve operation. any restriction would have to be on the truck side of the wheel valve to effect valve operation. Air comes in from the truck and...

Well the rubber glove test isolates it to just the one wheel valve, and you can add air to the wheel using an air chuck at the wheel schrader valve to see if it is having trouble sealing at higher pressures… but in the end, the vented air must come from a tire thru that wheel valve…

Well the quick release valves don't “open” they are pressure regulators. They match the output port(tire side) to whatever pressure is applied on the input(PCU side). it does this by passing air from the input port to the output port if that pressure is greater, or venting output port air to...

Well I suspect that a different pressure program would indeed have different overspeed points, but i think you having an overspeed issue with a newer model controller in an older truck(yours is an A0?) would probably be related to the differences in pulse per mile input. I believe it is a fixed...

It probably wont fix the overspeed...

In the end CTIS doesnt know pressure, it knows voltage. It relies on the pressure transducer and its circuit to make that conversion…

i’m 2 toggle switches, 1 pushbutton, 1 relay and a pressure gauge into mine… Just sayin:)

I have interacted with quite a few 5 solid light failures, mine included, and that is not counting the other intermittent failures that have not degenerated to a 5 solid fault(beat on the controller to restore ops for a bit:)). So I would say yes they have a fairly high failure rate across...