2009 Ford E150 Cargo Diesel Supplement 2nd Printing - Page 14

Driving Your vehicle is equipped with either an FCM or HFCM which recirculates fuel from the engine to help prevent fuel filter clogging. Your vehicle is also equipped with a bypass relief valve, located in the fuel tank pick-up boot, which provides fuel flow to the engine if the fuel pickup should become plugged. To allow the bypass valve to function and avoid engine fuel starvation during cold weather operation of 32°F (0°C) or below, it is recommended that the fuel level in your tank should not be allowed to drop below 1/4 full. This will help prevent air from entering the fuel system and stalling the engine. In cold weather below 32°F (0°C), the engine will slowly increase to a higher idle speed if left idling in P (Park). As the engine warms-up, the engine sound level will decrease due to the activation of PCM-controlled sound reduction features. If your vehicle is operated in a heavy snow storm or blowing snow conditions, the engine air induction may become partially clogged with snow and/or ice. If this occurs, the engine may experience a significant reduction in power output. At the earliest opportunity, clear all the snow and/or ice away from inside the air filter assembly. Take the top off the assembly, leaving the air filter in, and remove any snow or ice. In order to operate the engine in temperatures of 32°F (0°C) or lower, read the following instructions: • Make sure that the batteries are of sufficient size and are fully charged. Check other electrical components to make sure they are in optimum condition. • Use Motorcraft Premium Gold Engine Coolant solution at the concentration recommended to protect the engine against damage from freezing. • Try to keep the fuel tank full as much as possible at the end of operation to prevent condensation in the fuel system. • Make sure you use proper cold weather engine oil and that it is at its proper level. Also, if necessary, make sure to follow the engine oil and filter change schedule found under the Special operating conditions section in the scheduled maintenance guide information. • At temperatures of -10°F (-23°C) or below, it is recommended that you use an engine block heater to improve cold engine starting. • If operating in arctic temperatures of -20°F (-29°C) or lower, consult your truck dealer for information about special cold weather equipment and precautions. Note: Idling in cold weather will not heat the engine to its normal operating temperature. Long periods of idling in cold weather can cause a buildup of heavy deposits of carbon and rust on valve stems causing them to stick, which in turn, can cause valve train damage. 14 2009 Econoline (eco) Supplement, 2nd Printing USA (fus)