S2026 E05 Duramax Maintenance: Changing the Fuel Filter | 6.6 Diesel GMC AT4 2500 | Capable Horizons

I’m new to diesel engines, but I’m learning as I go. After researching the possible causes of fuel-system deposits and performance concerns, replacing the fuel filter seemed like the best place to start on my 6.6L Duramax. In this video, I walk through changing the fuel filter, draining the water separator, priming the system, and sharing what I learn along the way. This is not an expert mechanic tutorial—it is the perspective of a first-time diesel owner working to better understand and maintain his truck. The GMC Sierra 2500HD will play an important role in the future of Capable Horizons, so learning how to properly maintain it is part of the journey. #Duramax #DieselMaintenance #FuelFilter #GMC2500HD #Duramax66 #CapableHorizons Welcome to Capable Horizons — Built to Explore. We are a veteran-led family traveling America while building capable humans through adventure, fitness, preparedness, history, and hands-on education. On this channel you’ll find: 🇺🇸 Family travel adventures 🏕 Camping & overlanding 📚 Homeschool & roadschool life 💪 Fitness & preparedness 🗺 National parks & historic places 🔥 Outdoor cooking & family adventure Subscribe and follow the journey as we explore America one adventure at a time. #FamilyTravel #Homeschool #Overlanding #AdventureFamily #Roadschooling