One problem related to engine cooling system has been reported for the 1999 Dodge Caravan. The most recently reported issues are listed below.
Serpentine belt comes off while driving on wet roads. I replace pulleys belts several times this has happen since the van ran out of warranty. Finally I took to Chrysler and they put double pulleys on an a double side belt cost was around $300. 00. Chrysler knew of this problem. This happens in winter time also.