The pump is connected to the motor, and it pumps fluid (standard oil) in to the torque converter. The turbine is connected to the gearbox, and it spins in the event the fluid within the pump hits it. A foul transmission filter will bring about your gears to grind on https://filtergearbox92233.blogsvila.com/34240836/how-much-you-need-to-expect-you-ll-pay-for-a-good-filter-gearbox