There is a recall on the ball valve for the gas tank on this model. I am not sure if yours is involved or anybody has worked on it. The recall is for when the car flips then gas might leak, but it seems like most dealerships while repairing this broke something else in the process. I agree with hellokit that your gas tank is not ventilating properly. Maybe too much air stays in and the fuel pump is not getting fuel. I had bought a use '02 and could not fill-up the tank and two different dealers could not figure it out, so I returned the car at a loss, but saved myself a lot of time.