I have a 2004 Chrysler Pacifica. Just bought it in the spring and in general am pretty happy with it. However, now that the cold weather is upon us, i am finding it difficult to defog the windows. Put on the defogger mode, but it doesn’t seem to make a big difference. In previous, smaller cars, i would just put on the AC also and it usually defogged right away. Not so with this car. the heating/cooling/AC controls on this car are more varied that any i am used to, as i am a bit of an automotive troglodyte. Any suggestions will be gladly appreciated.
#1 - owner’s manual. #2 do you FEEL airflow from the defroster ducts like you normally would ?
Do you hear the AC kicking on during defrost mode ?
These other oddities would mean go to a shop.
Make sure you don’t have the heating system set to recirculate, On many cars this happens automatically when you select defrost but on some cars you have to switch it.
I have found the best cleaner for the inside of the windshield is denatured alcohol.
If you have a sweet smell and an oily film on the inside of your windows you have a leaking heater core. The anti0freeze fumes are bad for your health as well as your visibility.
Good advice above to check to make sure there’s a strong up-flow of air coming from the passenger compartment vents just under the windshield. If not, you may have a blend door actuator that needs fixing.