I know this might sound like a retarded problem but its the first time I'm run into it. I have a 2002 ZX3 and starting about a month ago when I go to fill it up it repeatedly trips the auto cut off on the fuel pump (like it should when its full) but it does this almost immediately. If I continue pumping the fuel overflows. If I wait a second and only fill at half speed then it takes longer but it still trips, usually 8 times during a fillup. It's acting like its full but its not and I can still put at least 10 gallons in the tank.
My best guess is that the air pressure in the tank isn't releasing like it should. Is there a pressure relief valve? What else could be causing it? I haven't taken it to the dealer cuz they always try to rip me off and take far to long to do it.
Thanks for any help.
Scott R.