I own a 2007 Chev Cavalier and have trouble with the car starting after it is filled with gas everytime since July of this year. The car will not turn over the first time ever after a fill and most times I must pump the gas pedal in order for the car to start. I have had my car into a dealership 4 times and they can not seem to find the problem. I have had the fuel injection done and they have tested the gas line going from the tank to the engine and it seems to have gas flowing. What to do??? Colleen

Had this problem a couple of times and it has driven it crazy to be honest ,one vehicle i cured by leaving the fuel cap off but this was a fault with the vapour re cycling ,now try filling next time with the vapour cover away from the tank if you can on american fuel pumps ,now if that doesnt work then it may be extreme but i found that one vehicle a opel astra which is our equvilent i had to change the speedo /dash head as its its full of fancy electronics at the back with lots of microprocessors and when the gauge went up it caused a problem somehow with the ECU i have no idea how or why so please dont ask ,now ask me about a 1960 car or truck but this new electronc stuff ,but i dont know why or what made me do it but i got one out of the scrapyard from a accident damaged vehicle and the car seemed the same but when i went and filled with petrol it started straight away ,I still dont know what i done though or why or even what made me do it in the first place just gut instinct