I had tires put on today when I got in the car to drive home the heat blew cold air. I changed the thermostat and still blowing cold air. it will blow luke warm at first then once up to temp its cold. The car seems to be running at normal temp, just not blowing heat.

 

Ok I think Ive narrowed it down to a climate control sensor.. The outside read out is 140 deg F and the car will blow heat if on HI but not if on any other setting...anyone know where the sensor would be?