I just bought this truck from my Father in law it only had 30k miles on it in mint condition. I am having an issue with it stalling out on me when I am driving. It also does this when i go to the store and come back out and it will not start. It takes a few times to get it going. The fuel pump does come on when you turn the key during these times. No codes are coming up in the system. I can drive around for a week or so and it will not do it. Currently have in in the shop but they can not get it to do it. Father in law never had this problem. Any suggestions>>>

 

While driving it completely cuts out and I lose all power it takes 5 or more tries to restart.

 

Fuel pressure regulator?