I won a 1997 Grand Prix GT on e-bay for 880 bucks just a month ago. Well I'm still waiting for the funds to license it so I start it every once in a while and have noticed that despite warming the engine up the temp gauge rises very little. Can someone advise me where it should read as a stock figure. I'm thinking I may have a thermostat or water pump problem. I know nothing of the background of this vehicle.