my car began to leak water and overheat a few days ago. The leak is not near the raditor but instead its coming from somewhere in the back of the engine by the dashbord area. I thought it was the thermostat, which I had replaced, but still contiinued to do the same thing afterwards. I had two friends (mechanics) look at it and one said it was a heater hose and the other said it was the freeze plug. These guys are only making these conclusions based on visual inspection. I domt have enough money to take it to the Toyota place to get checked out there. Can you please help out. The heater only works when it feels like it too.