The last 2 days my friends 08 6.4 just dies going down the road. Has happened twice now after the first time he took it to the dealer and they could find nothing wrong.
Temps have been Sub 0 the last several days but it isn't a jelling problum.
I guess after a few minutes it starts right up.
Has anyone heard of this happening??

 

I had a FORD RANGER That did that, I changed the FORD COMPUTER BOX, the FUEL PUMP and I was never able to fix it !! It would turn off and about 10 minutes later it would start right up and run perfect !!

 

Should still be under warranty.

 

It is still under warranty and the dealer said they worked on it 5 hours so I am sure they did every test possible.
When it dies he is driving down the road so you loose your power steering ,power brakes.

 

Sounds like something is getting hot, like gunman said. As soon as it cools off, can restart the engine.

 

Keep taking it back...

 

My 08 has done that twice - Ford can't get it to act up when in the shop so they are telling me there is nothing they can do to help me - the customer service people basically told me its my problem and the chances are its going to get worse the more miles I put on it - alot of guys are having good luck with them but I am sick of my 'PowerJOKE' and the way manufacturers handle the problems. I am working on the lemon law with mine as we speak - good luck to you buddy

 

try taking them to a diferent dealer. I bet right after the warranty expires on it and you take the truck in i bet they find it tight away.

 

Interesting you had the problum to and your in Texas where it doen't get that cold. I was thinking it was possibly a cold weather problum. Becasue in my friends case it was about -15 both times when it happened.
I had a 97 powerstroke lemmoned once. It went good after the factory people got involved. Strange thing is that 97 powerstroke never made it more then 3000 miles without needing new injectors a computer or something. In the 17,000 miles I had it, ford replace 4 sets of injectors.
I got my 97 replaced with a 99 powerstroke and that was a good truck.

 

i am not impressed with the 6.4... it pulls for sh** gets hot while pulling the fan constantly runs... our 08 DRW at work had 26000 miles on it and the egr cooler failed and bent a rod so it got a brand new 12500 motor and it still pulls like sh** granted it is always grossed out at 26k but our 08 SRW duramaxes can handle the load no problem... all in all not impressed but i think i would still buy one given the chance cuz when its not pullin it is a nice truck...