If the transmission is slipping in first gear or Reverse—or if you experience delayed or loss of gear engagement after initial startup—the transmission may require removal and disassembly.Google+
Car Problem Reports
Dodge Caravan Transmission May Fail Causing Slipping in First or Reverse Gear
Dodge Caravan Problem
Average Mileage: 205,333 mi (163,000 mi - 230,000 mi)
Visitor, 2000 Dodge Caravan, 223,000 mi
Transmission fails to engage when vehicle is cold. We wait a moment for the transmission fluid to build more pressure and then it seems okay. No official remedy yet... at 223k it may be sent to the boneyard rather than the shop. LOL. Great van!
Visitor, 2000 Dodge Caravan, 163,000 mi
My van has problems engaging in first gear when starting from park. Once its been on the highway and warms up it does fine.