Moisture issues

Hello friends
Tonight while driving my '91 Caprice wagon, all the windows were covered with damp when it started raining.
It was hard to find what caused the fogged windows but at the top of the doors I could see some moisture at the inside of the doors near the doorrubbers. So is this a common issue? Do I need new rubbers?
When I expected the rubbers on the outside, I could easy peal them off, so do I need to put kit in there?

Long shot, your heater core isn't leaking is it?  If it was, when you turned the defrost on, it would put humidity on the inside of the wagon.

Tom

Thanks Tom, that was my first thought (and fear) also. But the carpet is bone dry at the passengers side. I think I must a leak at the windshield.

In weather like that, you must your your AC. This will quickly remove the humidity inside the car. Note that you don't have to select AC to engage the compressor. Defrost will, and so will Blend (as does AC and MAX). Turn up the heat, turn on the AC, and you'll be fine.

Ok thanks, and if the heater core is broken, how can you tell? Does the carpet underneath the passengerside has to be very wet than?

If the heater core is leaking when you turn the defrost on, there will be a film on the windshield. Also there may be a sweet smell.

Tom

Clean your windows. Dirty windows are much more likely to fog up.

The evaporator case drain might also be obstructed, causing a lot of moisture to remain in the HVAC system.