While going down the road my 2001 F-250 7.3L super duty will just die with no warning or sputtering. It will start right back up and there are no codes. Would appreciate any thoughts.

 

Did your SES light come on?
If so there are codes stored. Most code readers can not read codes from a 7.3 because it is not OBDII compliant. Smart phone apps Forscan or TorquePro with an OBDII adapter will work very inexpensively.

As to your problem, it sounds a lot like a CPS issue. Please do not buy aftermarket sensors for your truck. They are know for short life spans and in some cases just plain don't work out of the box.

 

When going down the road and it dies does it start back up by itself ( just a hiccup) or do you have to coast to the side of the road and restart. If #1 then that sounds like the CPS.

 

Do you have a chip in your PCM? Any commonalities they can be identified? Speed, weather, acceleration ?

 

I had that happen once. Just running down the freeway at 65 and snap it suddenly quite!
I cost over the side of the rode. She relights on the first try and I take her home. I assumed it was the recently added chip. I did an R&R cleaned the PCB some more and it has not happened again.
When I had an aftermarket CPS my truck would stall sometimes but it was always at low speed as in coming to a stop light or sign she would just fade away. She would always restart with no problems.

 

Sounds an awful lot like a CPS issue, which is very common on the 7.3L engine. They are relatively inexpensive (around $25 from Ford) and you should always keeps a spare in the glove box. I would try replacing that first. Also, scan for codes to see if anything pops up. Do be aware that sometimes a code will throw for a CPS issue and other times it will not. Out of the three I have had to replace on my truck, only one of them threw a code.