1996 cobalt
New member
I have a 1996 cobalt with a 454 efi. Starts up fine and runs good. Stop for hour and it will start up fine, until you take off then it dies and will not restart. Sit 20 minutes and it will start up and run fine until you stop again for any amount of time. Then you have to go through the same thing again, wait 20 minutes and it will run fine. As long as you keep going there is no problem. Dealer thinks I'm nuts. Any suggestion?