Fixing a Leaky 01 7.3 Oil Cooler Without Stress

Dealing with a leak on your 01 7.3 oil cooler is basically a rite of passage if you've owned a Powerstroke for any significant amount of time. It usually starts with a couple of drops on the driveway, or maybe you notice a weird, oily film in your degas bottle during a routine check. Either way, it's one of those jobs that looks intimidating because of the mess involved, but it's actually pretty straightforward once you get the hang of how the assembly fits together. ...

February 23, 2026 · 7 min · Alya6a Richter