My aunt stopped by with her Town and Country to ask why it was dripping by the right rear wheel. It was condensation from a cold metal tube (about 20mm) alongside a warm metal tube (about 10 mm). At the back a fitting joined them.
It seemed like air conditioning but I didn't understand why evaporation should be taking place outside the vehicle. Farther forward, two hot 20 mm tubes ran alongside with these two.
I've searched the web but haven't found a description of AC on a Chrysler van. What are these tubes?