since i have purchaced my d there has been somthing very strange abouyt the heating and air system. there is plenty of freon and a the systems works great. you can hear the system and fans kick in and even here the fan blow stronger when you turn it up. there is cold air comming out of the vents but there is hardly any air force comming out of the vents. the previous owner said that the car just had a new mojulator instaled. even if it did, i don't know what it does, but i thought it would relieve come of the problem solving if i mentioned it. thanks for any help officer rick