My fiance drives a 97 dakota v6 and I have done almost everything I can think of to get her heater to work. Here is a little background, she goes and warms it up about 30 mins. before work and the heater still blows cold. So far I have replaced the water pump (it was bad anyways), the thermostat and corresponding gasket, and I replaced the radiator cap. What am I missing that could make her heater not work. Please help and thanks again. By the way my name is Ryan, I bought the truck for my fiance, Im ready to start modifying it for her, just dont know where to start, I myself drive a 93 acura integra but I wont delve into that because most mopar guys are fond of us import guys, but Im def. a mopar fan.