2014 Ford F250 Super Duty Super Cab Diesel Supplement Printing 1 - Page 9

Introduction • The gearshift lever must be in P (Park) or N (Neutral) in order for the starter to operate. Try operating the starter switch several times. This operation may clean potentially corroded contacts or make the switch temporarily operable until you can reach the dealer. If all electrical connections are tight and you need assistance to start, refer to Jump Starting in the Roadside Emergencies chapter of your Owner 's Manual Plugged radiator fins, A/C condenser and/or oil cooler Malfunctioning fan drive Driving with frozen coolant Sticking thermostat Overloading or pulling heavy trailers during hot weather Grill or radiator air blockage Slipping or missing drive belt Plugged or very dirty air filter • • If fuses burn out WARNING Replacement fuses and circuit breakers must always be the same rating as the original equipment shown. Never replace a fuse or circuit breaker with one of a higher rating. Higher rated fuses or circuit breakers could allow circuit overloading in the event of a circuit malfunction, resulting in severe vehicle damage or personal injury due to fire. Burned-out or blown fuses usually indicate an electrical short-circuit, although a fuse may occasionally burn out from vibration. Insert a second fuse. If this fuse immediately burns out and you cannot locate the cause, return your vehicle to your dealer for a circuit check. Refer to the Owner's Manual for replacement of fuses. Selective catalytic reduction system speed limit and Idle-only modes If the vehicle's speed is limited or in an idle-only mode, the selective catalytic reduction system may be limiting the vehicle's functions due to low or contaminated diesel exhaust fluid. Check the diesel exhaust fluid. See Selective Catalytic Reduction System (page 20). If engine cranks but won't start Prolonged starter cranking (in excess of 10 seconds) could cause damage to the starter motor or the high-pressure fuel pump. • Check the fuel gauge. You may be out of fuel. If the gauge shows that there is fuel in the tank, the trouble may be in the electrical system or the fuel system. If equipped with an auxiliary tank, be sure that the tank control switch is set for the tank with fuel and not on an empty tank. Leaving your ignition key turned to on for over two minutes without starting may make starting difficult because the glow plugs will cease activation. Reset the system by turning the ignition key to off and then back to on again. • Note: If the system is out of fuel and the engine will not start, do not continue cranking the engine. Continued cranking can damage the high-pressure fuel pump. If the engine runs hot The following could cause the engine to overheat: • • Lack of coolant Dirty cooling system. 6 Super Duty (TFA)