A lock-up torque converter provides a built-in locking clutch mechanism. Once the transmission senses a particular velocity or engine RPM, the torque converter will use the clutch to lock in a immediate relationship concerning the enter and output shafts for greater effectiveness. Visual Inspection:  Begin with a simple Visible inspection. https://torque-converter-clutch49135.blogacep.com/39235408/considerations-to-know-about-torque-converter-clutch