My 2002 Ford Taurus shutsoff when put into drive or reverse, why?

My 2002 Ford Taurus shutsoff when put into drive or reverse, why? - 1

I'd bet the torque converter is not working. Start with your own mechanic, and if he confirms what I'm thinking you will need to change out the converter.

Check all the fuses. See a Ford mechanic and check for transmission codes. Could be just a bad transmission solenoid relay. Or a bad transmission.