atall1

Hi, My '11 Edge has an interesting issue. The internal temp gets set to 72 or AUTO. However, once the car warms up, the temperature is MUCH warmer than 72. I run the temp down to 60 and it gets cold then slowly start bumping the temp up. Once I get to 72 again it gets really hot. I cant seem to get the temp to stay constant. Any ideas/suggestions? thanks in advance.