Everyone says the 6.4 Powerstroke is the worst diesel Ford ever built. But here’s the question nobody asks. Was the 6.4 actually a bad engine… Or did emissions systems, factory tuning, and poor maintenance destroy its reputation? In this video I break down why the 6.4L Powerstroke became so infamous and what really caused many of the failures people talk about. Some owners say it’s the most powerful and fun Powerstroke ever built. Others say it’s the most expensive mistake they ever made. So let