about a month ago my cars temperature was temporarily spiking up to the red for no apparent reason then going back down. eventually it began smoking and the water outlet housing blew off. i replaced the housing thinking it would be fixed but now i have coolant leaking from somewhere under the housing it looks like and the engine gets hot after about a minute of driving but the coolant isnt being sent through the hose from the coolant to the radiator. what is going on?