Also, regarding your question about torque converters:

I am hardly an expert, but know enough to say that a torque converter is simply a fluid coupling between the engine and the transmission, and not part of the transmission itself. It is essentially a turbine physically connected to the engine that spins a fluid (ATF) that turns a second turbine that is physically connected to the transmission.

Although there is some merit to what the dealer is saying about the transmission pump failure being linked to possible torque converter failure, as the tranny (piston) pump's function and the torque converter's (centrifugal) pump functions are basically interdependent, it nonetheless seems very far-fetched.

Eric