Ok, I just replaced the rad in my gfs car today and everything went fine. Got everything hooked back up and started up the car to see if it was overheating still etc, and it started up fine. Let it run for a couple mins, and when I pressed the gas pedal it died. Cranked the engine over a couple times and it would take a lot to start it and then die when I took my foot off the pedal. I wanted to know if the car maybe has a security feature I'm not aware of or something? Its a 2002 2200 Sunfire.