The antifreeze dumped out of the car. I put antifreeze back in the radiator and the car ran fine for 1 week then all the antifreeze dumped out again. I replaced the radiator and the next day all the antifreeze dumped out. It seems to be coming out in the back of the engine not near the radiator itself. The over flow container is fine, the head gasket is fine (no antifreeze in the oil). The hoses are fine. Im at a loss for the reason that it would dump the entire contents of the radiator (not the overflow) and then run fine for days, then dump the antifreeze. Please any help you can give me will be appreciated.