my 2001 grand prix gt is in excellent cosmetic condition, and runs great. i keep it well maintained. but recently, my temp gauge has stopped working, and i noticed that the engine fans start running as soon as i start my car. its 20 degrees outside. fans shouldn't start to run until car is up to temperature. car still has heat, but takes a good while to get warm and thats about it. the engine fans continue to run as long as the car is running, regardless of the fact of me having the heat on/off.