2004 express van 3500 with 6.0 engine stalled when hit water puddle

Hello, All of the electrical connections in the engine bay are made with a seal inside them, over time, those seals can wear and crack due to constant expansion and contraction. If you have a bad seal (o-ring) on one of the connectors, you will find water in the connector, and likely a good amount of corrosion on the connector. The alternative to looking is waiting. If there is just water in one of the connections, it will likely dry out over a couple of days, but that does concern me for future corrosion.

This may or 'may not be' related to water intrusion - hands-on testing for correct fuel pressure and ignition spark is highly recommended. ▪️https://repairpal.com/repair-shops▪️