I have a 02 Outback w/2.5L. I bought this car from a friend who brought it to Colorado from Arizona. He said he did the heads and afterwards the temp gauge kept reading in the red so he took out the thermostat and it stopped. Well, I bought it thinking a thermostat and new coolant temp sensor would fix it. But it didn't. Now it is actually overheating, the heater takes forever to get hot and goes back to cold. Plus the lower radiator hose stays cool. If anyone has any idea what may be going on, please help!