Looking for - air gauge "sensor" for air pressure - in the instrument panel.

The sensors are under left leg kick panel.

 

It will be plugged into this.

 

Air gauges have gone electronic now? Those are the only mechanical gauges I have on my truck...always figured it was a safety thing, so that even if everything else on the dash quit working, you'd know how much air you had in the system. Not sure I like the idea of those being electronic...but then I've never really been a fan of the whole fly-by-wire thing, either.

 

Everything is fly by wire.
Donno about D13 in my Cummins if pressure falls below 80 psi engine got derate.

 

I woke up today to this. Is this the cluster issue or the sensor is short???

 

Open your tanks drain and see. Stand back though 200 PSI will cut your fingers off.

 

If truck was idling all night could be faulty governor. If you just turned ignition on probably sensors circuit or dash. You can run dash test in driver menu Sweep Instruments to check

 

This time it happened when it was idling over night and it’s first time they both did it at the same time. I’ve seen bottom gauge do this before while I was driving on a highway and usually on a bumpy road like in Indiana. After a couple engine start ups upper air gauge went to normal operation, but bottom one still was doing the same. So yesterday while waiting for loading I disconnect battery’s for like an hour, just after reconnecting them and on a start up it did reset the bottom one

 

Did you run instrument panel diagnostic test?