i have a 1999 grand am and recently i lost my heat,and now the car is overheating...i checked and i was completely empty on antifreeze...i refilled the anti freeze,but now it is not circulating...my car tempeture will rise and also i let it run for about 10 minutes put my finger in the reservoir where the anitfreeze was and it was still cold...could it be the water pump? thermastat? any suggestions would be a blessing thank you
