Defogging 2004 Pacifica windows

chrysler
pacifica

#1

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.

Happy New Year


#2

#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.


#3

This may be a painfully obvious question… but have you cleaned the inside of the windows with Windex, vinegar, etc.?

Another thought that occurred to me is a plugged heater core can sometimes blow stuff on your windshield. Hopefully that’s not the case, though.

Good luck.


#4

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.


#5

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.


#6

Outside air, defrost, heat set to max. You may have to crack a side window (or sunroof if you have one) to pull warm moist air out quicker.


#7

Thank you all for your replies. They gave me some places to look. I did rewash the windows and it seemed to help a bit.