The torque converter clutch solenoid is often energised (stuck on) which translates in the torque converter being usually locked. The pump section on the torque converter is connected to your housing. HowStuffWorks The fluid then enters the blades from the turbine, which is connected to the transmission. The turbine triggers https://andrepvwxv.onesmablog.com/about-torque-converter-clutch-74887480