2011 Ford F450 Super Duty Crew Cab Diesel Supplement 5th Printing - Page 7
2011 Ford F450 Super Duty Crew Cab Manual
Page 7 highlights
Instrument Cluster Water in fuel: During refueling, it is possible for water-contaminated diesel fuel to be pumped into your tank. Your vehicle's fuel system is equipped with a fuel filter/water separator to remove water from the fuel. The water in fuel light will illuminate when the DFCM has a significant quantity of water in it. If the light illuminates when the engine is running, stop the vehicle as soon as safely possible, shut off the engine, then drain the DFCM. Refer to Fuel filter/water separator in the Maintenance and Specifications chapter of this supplement for the drain procedure. Allowing water to stay in the system could result in extensive damage to, or failure of, the fuel injection system. Note: Air will enter into the fuel system if the DFCM is drained while the system is running. The engine will not operate properly if air enters the system. WARNING: Do not drain the DFCM while the engine is running. Fuel may ignite if the separator is drained while the engine is running or the vehicle is moving. Low/contaminated diesel exhaust fluid: With the key in the on position, this light will illuminate if the exhaust fluid is contaminated and/or low. See Diesel exhaust fluid in the Maintenance and Specifications chapter for more information. GAUGES Engine boost gauge: Indicates the amount of manifold air pressure in the engine. 7 2011 Diesel (eco) Supplement, 5th Printing USA (fus)