Hey just replaced the water pump, thermostat and she is still over heating when you poor antifreeze in, it sits there and then starts bubbling over. Possibly air pockets. The way it shoots out my mechanic thinks its warped head....what about it guys 4 cyl. 2.0 89 4 dr camry. I am kinda leaning toward the radiator cap or airpockets. The radiator cap is letting the water out into the overflow so maybe defective cap?????