Yesterday we were coming home in our 2002 caravan with rain and snow
beating down really hard. When we got home we stopped to pick some
stuff up at the store and I noticed the grill steaming. Not much, and
rather uniform (across the entire grill, not localized). The temp was
fine according to the dash and we had lots of heat all the way home.
This morning I checked under the hood and under the vehicle and didn't
see any proof of a leak, the resevoir still had some antifreeze in it
and removal of the rad cap showed it was topped up. Giving the lines a
squeeze lowered it about 1/2 a cm.
We're rather new to this vehicle and I'm wondering (hoping) if it was
simply rain and snow entering the rather large honeycomb grill and
evaporating on the rad?