2022 Freightliner Cascadia engine stalls intermittently

Preface to thread: when I refer to my truck's engine stalling in this thread, I mean that the engine stops running.

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When my truck is parked, and I first turn on the truck's engine, sometimes my truck's engine will stall within the first five seconds of when I turned the truck's engine on. My truck's engine never stalls while i am driving. This problem only happens intermittently. When my truck is parked, and I turn on the engine, sometimes the engine will stay on.

I have thought about this problem extensively. I have some ideas about diagnosing this problem that I just deduced. Nobody told me about this. So my ideas might not be correct. But this is how it seems to me.

Here is my hypothetical scenario:

Let's say my fuel tanks are half full with fuel. When my truck is parked, and I turn on my truck's engine, and the engine stalls, if my fuel gauge drops to zero (even though I have half of a tank of fuel in my fuel tanks), then the cause of my truck's engine stalling is probably an electrical problem.

When my truck is parked, and I turn on my truck's engine, and the engine stalls, if my fuel gauge keeps showing I have half a tank of fuel after the truck's engine stalls, then the cause of my truck's engine stalling is probably not an electrical problem.

Do you agree with my ideas of how to diagnose this problem?

 

My truck is a 2022 Freightliner Cascadia.

Of course, my truck's engine stalling is not CAUSED by the fuel gauge.

What I am saying is that I could maybe DIAGNOSE the problem of the engine's stalling from looking at the fuel gauge or other gauges like the water temperature gauge or engine oil pressure gauge. My logic is that if the gauges still work when the engine stalls, the truck's electronics are probably working properly. If the truck's electronics are working properly, then it is probably not an electrical issue causing the engine to stall.

 

The truck's engine is not stalling right now. So I don't think those warning lights can help me diagnose the problem right now.

The only warning alert I have on the dashboard right now is "Active brake assist not available."

 

My truck is in the repair shop right now. I am not allowed to go on the shop's floor. So I cannot get the last six numbers of the VIN number.

I don't know if I have a DD13 or DD15 engine either.

I did not recently change the fuel filter. I got a Basic Periodic Maintenance inspection of my truck a month ago, and the mechanics might have changed out my fuel filter a month ago.

The truck had been sitting about one hour each time it stalled in the past.

But my purpose in creating this thread is not really about "how do I fix my truck". The mechanics will repair my truck. My purpose is to learn about how to diagnose the problem of why the engine stalls. I am just asking the question of the OP to satisfy my curiosity. I made a logical deduction about how to diagnose this, and I am curious if I am on the right track.

Am I correct that if the fuel gauge, water temperature gauge, and oil pressure gauges drop to zero when the truck's engine stalls, that it is likely some sort of electrical problem causing the engine to stall?