My truck loses a gallon of water a day. Last night, I got home, and there was steaming coming from underhood. I popped the hood and found that there was a pool of coolant in the intake valley. Now, I had thought it was a bad freeze plug or warped head and bad head gasket on the passenger side, but now I'm thinking it's the hose that comes from the back of the water pump to the heater core. I'm not sure where to go from here. Do I just cut it at the heater core and bypass it? Somebody help