Heater and condensation

Asked by Dec 09, 2010 at 09:09 AM about the 2005 Dodge Caravan SE

Question type: Maintenance & Repair

Hi all!
I can't get rid of the condensation on windows while heater is in "hot" position. I
heat up the van, start driving then after 10-15 minutes it starts to accumulate
condensation in a very heavy way - even droplets run down on them! I checked -
the air flow circulation is not "looped" - it takes air from outside. I switch on the
A\C to reduce dampness but this doesn't help. Only windshield is clear - all other
windows are tinted with perspiration. Any guesses? Hints? Advice? Please!!!

3 Answers

485

Sounds like like you have cracker heater core. Does it smell like anti-freeze?

It was the first thing that I thought of. But no - there are no suspicious smells. Although people told me to run few days with opened rear flaps and leave them open during night. Will try this solution for now...

On the other hand, sometimes I smell dry dust in a car. The smell usually came when heater switched to a "window" position. I know how tosol (coolant) smells, but this is not the one... or I'm mistaken? Are there any ways to check have i cracks or not in my own garage, not giving the car to "professionals"?

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