1999 Dodge Intrepid

Heater problem
1999 Dodge Intrepid 6 cyl Two Wheel Drive Automatic 135000 miles

I have cold air but can not get it to swith to heat. Could it be the thermostat. The temperture gage in the car does not move to hot. I tried a different control panel no luck. What else could it be? I want to see if this works and then I would be more thsan happy to send a donation.
September 12, 2010.

Could be the thermostat stuck open-Check the heater core if its clogged, if it has heater control valve -check it, and also be an air blend door problem stuck in the cold position and the HVAC control module

Sep 12, 2010.