Newbie here --- Have a 2002 Dakota - Getting moisture inside truck while driving. Thought it was heater core but the leakage I am finding on passenger floor is not anti-freeze -- It is just plain water. This all started when I began using AC when weather changed.
Have been looking for a drain of some sort for condensation but have not found one. I do not get any dripping on ground at all when truck sits idling with ac on like any other vehicle does.
Anyone know how this is supposed to drain?

 

mine does the same thing but some times it does leak on the ground the carpet was dry but the padding was wet so i put a towel under the carpet for now i was thinking that it was a leaking cowl but i guess not

 

I had that problem too, what I did was got a pvc 90 degree elbow , and glued it to the ac drain, its located on the passenger side firewall, a pain to get to. There's a heat shield covering it. You'll need to remove that shield first. That solved my problem.

 

whats below that, that allows it to leak in the firewall

 

well i asked my friend that works for dodge and he said its a blocked drain and to run a bunch of water threw the cowl and try to flush it threw

 

There's a foam gasket that has rot away.. dealer wanted $125.00 to seal it some kind of epoxy..

 

just add an elbow no need to remove the heat shield.