2004 Ford Crown Victoria Natural Gas Vehicle Supplement 1st Printing - Page 7

Servicing your vehicle 9. Aft axle fuel tanks - Two steel fuel tanks located behind the rear axle. 10. Midship fuel tank - A steel fuel tank located underbody. 11. High pressure fuel lines - Delivers high pressure fuel to the fuel tanks and fuel pressure regulator. 12. Fuel pressure regulator/Coalescent fuel filter - Reduces fuel pressure and removes impurities from the gas. 13. Low pressure fuel line - Supplies natural gas to the injectors. 14. AFV module - Contains the unique powertrain electronics that are required for an NGV. F-150 Heritage Pick-up 1. Fuel rail sensors - An injection pressure sensor and an engine fuel temperature sensor provide engine fuel information to the powertrain control module. 2. Isolation solenoid valve - Blocks flow from supply line to injection manifold when the engine is off. 3. Engine - A modified 5.4L gasoline engine with Sequential Electronic Fuel Injection (SEFI), an improved valvetrain and a high compression ratio. 4. Powertrain control module - Uniquely calibrated for NGV application. 5. Internal tank valve - One electronically actuated, normally closed solenoid valve is located in each fuel tank. The valve is wired into the 7