2013 Ford F250 Super Duty Crew Cab Diesel Supplement Printing 1 - Page 31
2013 Ford F250 Super Duty Crew Cab Manual
Page 31 highlights
Fuel and Refueling FUEL FILTER/WATER SEPARATOR Diesel Fuel Conditioner Module (DFCM) The vehicle is equipped with a diesel fuel conditioning module (DFCM) located on the frame-rail under the driver-side floorboard near the transmission Water should be drained from the module assembly whenever the warning light comes on and the message center directs you to drain the water separator. This will occur when approximately 0.32 pints (150 ml) of water accumulates in the module. If water level is allowed to exceed this level, the water may be passed through to the engine and may cause fuel injection equipment damage. Draining the DFCM WARNING: The vehicle must be stopped with the engine off when draining the DFCM. Fuel may ignite if the separator is drained while the engine is running or vehicle is moving. 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. Note: With fuel tank levels above 3⁄4 tank it may be necessary to loosen the bowl 3 turns before opening the drain. This will actuate an anti-siphon valve at the DFCM inlet and prevent the fuel from siphoning out of the tank. Note: A loose drain valve can allow air to enter the fuel system and cause drivetrain issues. The engine will not operate properly. Be sure that the drain valve is fully tightened. 1. Stop the vehicle and shut off the engine. 2. Locate the DFCM and place an appropriate container under the drain port (see illustration). 30 2013 Diesel (67l) Supplement, 1st Printing USA (fus)