JDanco81

Ok folks, I'm hoping someone out there can help guide me to my problem area. I have a 2001 outback wagon with the 2.5L. It runs greats, but recently is have been pushing the antifreeze into the overflow and not drawing it back into the system. I did the obvious and changed out the radiator cap for a new one. That was not the problem. I put the car up in the air and pulled the cover off to have a look at the head gaskets. They were dry. I squeezed the lower radiator hose and had antifreeze come out of the thermostat housing. I figured the gasket went bad and replaced it. That seemed to work for a bit, but on my way back from a 300+ mile trip the car began having the same symptoms again. I stopped, shut the car off and burped they system until I was able to open the cap. The overflow was full but the radiator was again low on fluid. I topped it off and made it home with no trouble. My thoughts are it's the waterpump, but I had already replaced that no more than 8 months ago when the timing belt was done. I am hoping it's not the head gasket, but I am not sure. Wondering if anyone else out there had a similar problem and could tell me what they had done to fix it. Thanks for taking the time to read/reply folks!