The impeller (one) is rotated via the crankshaft and it converts the mechanical Strength in the crankshaft into kinetic Power by putting the fluid in motion. The TP sensor implies the throttle plate angle. If the motive force accelerates to extensive-open up throttle, the TCM disengages the TCC to downshift. https://torque-converter-clutch09630.blogolenta.com/31205519/the-ultimate-guide-to-torque-converter-clutch