Two problems related to defogger have been reported for the 1997 Dodge Grand Caravan. The most recently reported issues are listed below.
Started smelling an odor coming from the vents. Contacted dealer ,they deodorized it, still continued to smell the odor. Then they replaced the evaporator assembly. They found mildew growing on the evaporator.
Defrost making loud noise, after having car 5hrs dealer called to report no problem. Advised to turn fan on.