6.4 Powerstroke Fuel System Diagram: Routing & Repair 2026
The 6.4 Powerstroke fuel system features a high-pressure common rail design with dual high-pressure fuel pumps (HPFP)—one driven by the camshaft, another by the accessory belt. It includes a fuel bowl with filters, an injection pressure regulator (IPR) for rail pressure control, and a fuel return line managing excess fuel back to the tank. 📌…
