I have a pink 1997 DeVille and it is overheating. We replaced the water pump and the thermostat and it stiil over heats. Also there is no fluid flowing through the motor, after:confused running it for about 20 mins the car got to almost 200 and I shut it off and opened the radiator cap and cold fluid came out and both hoses were cold. Some people tell me it's a blown head gasket others tell me it's not. Can you please help me?