Just installed brand new water pump today and hooked her up to the muffs, Why cant I get water to come out the pee hole. Is the thermostat stuck closed? Do I need a thermostat? There is water coming out of every other orface that it is supposed to just not the pee hole. What could be blocking it. Didnt hit any sand or mud. Is there a way to reverse the water through the engine water jackets to clear the tube?