How to Clean Torque Converter Without Messing It Up

If you've noticed your transmission acting a bit sluggish or felt a weird shudder while driving, you're probably looking into how to clean torque converter internals to see if you can save yourself a massive repair bill. It's one of those jobs that sounds intimidating because the torque converter is essentially a sealed "black box" of mystery for most people, but if you've got the transmission out of the car already, giving it a good flush is a smart move. ...

February 4, 2026 · 6 min · Mckinsey Byers