The pump is linked to the engine, and it pumps fluid (standard oil) in to the torque converter. The turbine is linked to the gearbox, and it spins if the fluid in the pump hits it. Indications of soiled transmission fluid consist of the presence of Grime and steel shavings https://filtergearbox11098.blogcudinti.com/34198980/the-fact-about-filter-gearbox-that-no-one-is-suggesting