Why doesn't my heater work in the winter? My heater didn't work last winter and since then I have replaced the thermostat 3 times, I replaced the temperature and cooling sensors twice, and had my everything cleaned out since it was plugged up with debris. After that, this summer I had heat, but now that it is cold again, the heat is hardly warm and the blower only works on the highest speed in heat mode. My mechanic is puzzled why it worked when I didn't need it to and now that it is cold, nothing works. My front defroster takes a long to work. I let my car warm up for 10 minutes in the morning and then I drive 30 minutes to school and still no heat! Help!
Sunday, December 5th, 2010 AT 7:14 AM