Ice celi, Aw man Options

[Nemises]

So my girl is in my passanger seat complaining that her feet are cold. Than she starts complaining that my floor is cold. Make a long story short something is leaking on my passanger side of my car I pulled up part of my carpet real quick there is about a 2 inch thick solid block of ice under my carpet the size of the whole area in front of the front passanger. I really gotta get to the bottom of this at least its frozen if it melts im gonna have a lot of water damage. Any suggestion what it might be? Isnt their a drain hose on that side I think ill start their and see what happens.

[WannabeGT4]

heater core is heated with anti-freeze. If it were the heater core you'd have a sweet smell through out the car and wet carpet, not frozen. Every heater core I've ever replaced has been a major P.I.T.A. I'd keep looking into other possibilities like some one constantly tracking snow into the passenger side of the car.