Okay guys it is starting to get pretty cold in the mornings here and I realized that my heater is not working like it used to. It used to get freaking hot. I can let the car warm up and the temp gauge will be halfway--its normal position. When I turn on the heat it is warm at first but then get cooler to the point where it is slightly warm. At the same time the temp gauge falls back to the first quarter measure near the C(cold) mark. What in the world is going on? I am thinking it is the thermostat so I am changing it but if there is any other possiblities let me know. Thanks.