I have a 2006 F-250 Diesel with a 6.0. Last week I had to have it towed to the dealer because it would not start( would spin over) it started fine that morning no smoke just a normal start up but when i came out of the store it would not start. The dealer replaced the FICM and the EGR valve. Two days later same thing left me in a parking lot would spin over but not start. Towed back to the dealer this time they say the batteries need to be replaced. Could that have been the problem instead to the FICM? Should they have checked the battery voltage first?

 

get it to someone that knows what they are doing and not changing part and charging you for them trying to chase a problem.

ask down in the 6.0 diesel forum. this is a common problem with the 6.0, it will start cold fine but not start hot.
it is also a simple fix, but i do not remember what the fix is. i do know it is fuel related.

 

I'm no 6.0 expert but it sounds like the HPOP and/or the STC fitting... from what I understand those are usually the culprits for hot no-starts.

 

that is what i was thinking of, the stc fitting. thank you.

 

no problem