[05blackduramax]

i friend of mine is out of town he has an 03 duramax with 76000 miles it will start in the morning and it drives and runs fine but once its warmed up and you shut the truck off it will not start it trys to and no check engine lights any ideas he took it to a shop the injectors checked out fine

 

[adeso]

Is it losing prime?

 

[JohnACman]

Is it losing prime?

That would be my guess. Has he pumped the primer when it doesn't start?

 

[05blackduramax]

no il have him try that

 

[05blackduramax]

i just got off the phone he said that he has tryed that and it didnt work

 

[vinnie gillotti]

tell him to lossen the fuel cap and try to prime it . but my guess would be fuel line collapseing that 1/2" fuel line has a rubber inside and collapeses on its self.

 

[hootie]

we tried to loosin the fuel cap and priming it no change still wont start when hot starts fine when its cold