[bwood]

Is the truck low on coolant?. Condensation can form in an engine that isn't driven much or is used on short trips that never get warm enough to cook off condensation. How is the compression? These engines don't have coolant in the intake so the only way I can think of to get water in the oil is through a head gaskets or cracked head/block. Coolant leaks from the intake went away they started using the Gen III engines.