Hi everybody, im new to this site and need some help with a problem.I have a 2007 300AWD that the heater will not blow cold air ,air conditioner works fine just no heat.I had car to dealer and they looked at it for about 1.5 hours and could not the find problem said they will need the car allday to diagnose the issue. I cant get the car back to them for about a month and was just wondering if anyone else had this issue and could help.The technician said he thought the heater core was pluged but did not say if he meant air or water side but i still get air when on heater but air is just cool.This car has 25,000 miles on it.


thanks for your help

 

My guess is that your blend door is not operating and if that is the case, I do not believe there is anything that you can easily do about it. The dash needs to come out to repair a blend door.