What does locking your torque converter do?
What does locking your torque converter do? It allows the engine to turn at a lower RPM when the vehicle is traveling at higher speeds. However, when the engine turns more slowly it causes the torque converter to slip, creating heat. The solution is to lock the converter. Lock-up eliminates the slippage, which reduces heat and improves fuel economy. When should a torque converter lockup? Recently developed torque converters have had a "lockup" feature added to reduce this energy loss and improve mpg. This lockup feature will not engage until the vehicle reaches approximately 40 mph. Other factors may also...