i have a 03 f 350 with the 6.0 i just got the the fuel pump replace and it runs strong but like if i turn it off after i run it it sometimes doesnt wanna crank turns over fine and acts like it has all the juice in the world but just cranks and then if i let it set for 20 30 minutes ill go out and it will fire up so i am new at this disel thing and relly just need some advice thanks

 

check your ICP sensor. itll either be that or the connector to the sensor itself..

 

hpop or o-ring leaking