2004 duramax wont start
 

Can someone point me in the right direction? This truck all of a sudden wouldnt start, so we primed it and it started but for the next 4 or 5 times had to prime it then it died going down the highway and now has no resistance when you push the primer in.
This sound like an air leak or a fuel pump?

sounds like its sucking air somewhere. the primer assy. can cause issues.

sounds like your primer has o rings etc leaking. you can buy a rebuild kit:hellox:

04 duramax
 

Thanks guys. Ill try that.