Engine Shutting Off

[texanlife4]

2026 Trailboss Custom w/ 5.3 engine and almost 12k miles. It's happened twice now when rolling through a parking lot that the engine has shut off. Electrical stays on and doesn't skip a beat, but the engine just stops running. Shift to park and restarts just fine. First time was a month or so ago, maybe a little more. Second time was yesterday. Any ideas what might be causing it? For what it's worth I have noticed that the auto start/stop doesn't ever seem to kick in whenever I forget to turn it off with the switch. Idle is really low, like I can't even feel or hear it and most times I think it's done the start/stop but it responds normally like the engine is still running. Might be normal but thought I'd mention that too. Any ideas other than taking it to the dealership and having them look at it? Thanks for any help.

 

[Stormin08]

until it throws a code, your just reviewing running parameters....
it kind of sounds like a failing fuel pump module, easy fix...cheap part, easy to access

mine did this similar scenario while driving...it took several times before throwing any codes.

 

[texanlife4]

Ok, I'll keep an eye on it and see what it ends up doing.