I am haveing a problem with my 2000 outback overheating. Before i replaced the radiator I had problems with not getting any AC or Heat in the cabin. It wasn't until about 4 weeks ago I was haveing the overheating problem. So I replaced the radiator and the hoses and the cap. I filled it up with fluid and and went on my way. the car still continued to over heat. Now for the conditions. It's more prone to overheat when the heater in the cabin is running (yes it is blowing hot air and AC) I noticed there wasn't any fluid in the resivoir when I had filled it initially, so I kept topping the radiator off only to have it flow into the resivoir and pour our of the pinhole at the top. I also noticed that the coolent hadn't been recycleing back into the radiator from the resivoir for 4 days and then sundenly decide to suck back in. Both conensor fans are blowing. The top hose does get warm to the touch, but I can still grab hold of it.. There is no milkyness to my oil ( I hear that is a synmptom of HG). I put it up on ramps today cause a friend who rebuilds engines says I might have an air pocket. Idled the engine an noticed bubbles in my resivoir. could these problems be a symptom for air in the system?