I have a dodge durango that is running like it is out of gas. Although it does start it is spuddering and dying out within seconds. I have had a tune up done and it is still running poorly can this be vaopor lock or my fuel pump.

If you can hear the fuel pump run, when the ignition switch is turned to ON, it is likely okay. I would ensure that only the Champion spark plugs that originally came in the truck were installed. Look on the underhood label. I've helped other Dodge truck owners where cross-reference spark plugs prevented starting. Finally, I would change the fuel filter, if the problem persists.