I have a 95 chevy 2500 6.5l turbo. hard to start. sometimes stalls, restarts, stalls. I tried to prime the fuel filter . first there was fuel comming out of the vent. next time there wasnt. what could be my problem? fuel filter?? fuel pump?. when its running. everything seems great.

 

hole in the fuel line possibly, bad lift pump if they have one on the 6.5 good luck figurin it out