Originally Posted by fla1976
Are you using the trans cooler that is built into the radiator? Have seen them go bad and leak coolant into the transmission lines. Just a thought.
This is the only reason short of someone pouring water in the trans. It doesn't happen often, but I have seen it a few times. Time for a new radiator or an external cooler. Oh and another thing, PLAN to rebuild the trans too. Water messes up the clutch plates. It will not last long if it isn't gone already.