I thought I would post this in case anyone has a similar problem. Last night when I got home (thank god i was home when this happened!!) I noticed steam rising from under my 3.0 4runner hood. Needless to say i was pretty scared to open the hood and see what was the matter. The engine luckily did not get hot at all even though the fluid was spilling out of the motor. i thought at first I have a blown head gasket because it all seemed to be coming out just buy the headers on the drivers side. upon further investigation I was looking over my driver side tire and notice it dripping out of the heater block. I reached in and grabbed the heater and it was just daggling out of the motor. On the heater block there is an anchor that holds it into the block and this broke on one side. So I manufactured another achor and got the heater back on and all seems good now. Just thought I would post in case someone else has a similar problem.