Random stalling while cruising

[Yellowbird]

99 4.0
It has stalled out while driving 3 times now. All three were at 45mph and cruising, not accelerating or letting off the gas.
It just dies and then self restarted again after 3-5 seconds. The third time it did not restart and I had to pull over to keep trying to get it to start. It wouldn't start but would crank fine. Waited five minutes and it stared up fine, and drove the rest of the way home without stalling but it did feel alitlle sluggish.
No codes thrown either.
Where should I start looking to get an idea what's wrong

 

[Sensei]

Test fuel pressure at the rail. I just had the same issue during a drive today. Shut off while pulling/cruising. My fuel pressures are low. Follow my ongoing thread here if you wish to see what i've troubleshoot so far. https://wranglertjforum.com/threads/4-0-on-33s-struggles-to-go-past-60-mph.64690/

 

[Sensei]

Does your jeep take more then 1 crank to start in the mornings? When it does start for the first time in morning, does it idle a little rough or have a sputtering sound?

 

[JKP]

Yep, symptoms of a fuel pump going out.

 

[Hopper]

My tps in my 99 4.0 stalled me a few times but usually wouldn't start up for awhile. Also had my fuel pump go out and stall me while driving shortly after I bought it.

 

[Yellowbird]

Does your jeep take more then 1 crank to start in the mornings? When it does start for the first time in morning, does it idle a little rough or have a sputtering sound?

I'll see if I can borrow/rent the Guage/device to check the fuel pressure.
It always ( with the exception of the last stall) starts right up first crank and idles great.

 

[kzrider]

Check for a bad crank position sensor. My 97 did this and at times would not restart after stalling. Ended up being the CPS and apparently heat was the issue. Once cooled down it would restart.