One problem related to engine noise has been reported for the 1999 Dodge Grand Caravan. The most recently reported issues are listed below.
Camshaft broken in half on expressway while doing 70mph. Suddenly lost power and started skipping and making noise. Vehicle was able to coast to a safe stop, but no warning or indicator light were displayed. Dealer was able to replace camshaft, but didn't explain what caused it to break.