Quick question. My '99 Caravan only provides slightly warm heat regardless of engine temperature... UNLESS I put it on recirculate. Then I get nice and toasty inside. Of course, when on defrost, you can't have recirc active, so it's a pain in the arse to defrost the windshield on icy days.
I've covered all the basics... the waterpump is new this year, the t-stat is new, coolant level good, etc. If the heater core were plugged, I shouldn't get heat even on recirculate so I'm stumped.