One problem related to underbody shield has been reported for the 1998 Dodge Grand Caravan. The most recently reported issues are listed below.
I took my 1998 Dodge Grand Caravan to my local mechanic after hearing noises. He informed me that the strut tower was corroding and the under body was shifting. Further corrosion and movement could collapse the housing and cause a serious accident. Two tsbs were issued on these problems, 23-044-02 and 23-01-97. Dodge says they are not responsible for these problems, even though they are safety issues, since the vehicle is out of warranty. Even the president of daimler Chrysler claims he cannot accommodate my request for a resolution of this safety issue since the car is out of warranty. I guess I have to wait to get into a serious accident resulting in death before they would do something.