One problem related to engine head gasket leaking has been reported for the 1998 Plymouth Voyager. The most recently reported issues are listed below.
Antifreeze leaked from van suddenly. Took it to a dealer who said it was a head gasket leak. They fixed it at a cost of $1300. 00. It had 84,000 miles on it when this occured a few months ago. Was told by mechanic that this is a common problem with crysler vans for this to happen.