Thank you for choosing Ford. We recommend that you take some time to get to know your vehicle by reading this manual. The more that you know about your vehicle, the greater the safety and pleasure you will get from driving it.
WARNING:
Driving while distracted can result in loss of vehicle control, crash and injury. We strongly recommend that you use extreme caution when using any device that may take your focus off the road. Your primary responsibility is the safe operation of your vehicle. We recommend against the use of any hand-held device while driving and encourage the use of voice-operated systems when possible. Make sure you are aware of all applicable local laws that may affect the use of electronic devices while driving. |
Note:
Always use and operate your vehicle in line with all applicable laws and regulations.
Note:
Pass on this manual when selling your vehicle.It is an integral part of your vehicle.
Note:
Your vehicle’s powertrain control systems can detect and store information about vehicle modifications that increase horsepower and torque output such as whether or not performance-enhancing powertrain components commonly referred to as performance chips have been used. This information will stay in the system’s memory and cannot be erased even if the modification is removed. Ford Motor Company, Ford of Canada, Ford of Mexico and service or repair facilities can retrieve this information when servicing your vehicle. Ford Motor Company may use this information to determine if your warranty covers any needed repairs.
Note:
Some aftermarket products may cause severe engine/transmission and/or exhaust system damage; refer to your warranty information for more information.
Your new diesel engine will feel, drive and function somewhat differently than a gasoline engine. Therefore it is very important that you read and thoroughly familiarize yourself and others operating the vehicle with this guide. There is a special procedure for turning off the diesel engine. See
Starting a Diesel Engine.
It is important to read and understand this material in order to maintain the best service life for your engine.
Ford may discontinue models or change specifications without any notice and without incurring obligations.
Note:
Either Ford Motor Company or an authorized Ford dealer may have originally sold this incomplete vehicle to a vehicle modifier who upfitted it. As a result, some of the options and features on this vehicle may differ from what we describe in this manual.
This manual may qualify the location of a component as left-hand side or right-hand side. The side is determined when facing forward in the seat.

A Right-hand side. B Left-hand side.
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Warnings
WARNING:
Throughout this guide, you will find warnings identified by the warning symbol. Warnings remind you to be especially careful to reduce the risk of personal injury. |
Diesel Engine Information
The diesel engine fuel system is a pressurized two-stage filtration system and consists of:
- A frame-mounted Fuel and Water Separator primary filter with an electric fuel pump and water drain
- An engine-mounted secondary fuel filter
- A fuel injector for each cylinder (8 total)
- A high-pressure fuel pump
- A high-pressure fuel rail for each cylinder bank (2 total)
- Numerous high-pressure pipes from the high-pressure pump to the rails, and rails to the injectors
The fuel and water separator removes both water and impurities from the fuel. The engine-mounted filter filters finer impurities from the diesel fuel. The engine-mounted fuel filter and the frame-mounted fuel filter should be changed at the recommended service interval or when indicated by the information display LOW FUEL PRESSURE message. See
Scheduled Maintenance.
The fuel and water separator should be drained at regular intervals (recommended at every oil change) or when indicated by the information display and water in fuel indicator light. See
Fuel Quality - Diesel.
Proper fuel filter maintenance and prompt water draining when the water in fuel light illuminates is essential to prevent injection equipment damage. Ignoring the water in fuel light or the information display message WATER IN FUEL DRAIN FILTER can cause your vehicle to go into a reduced power mode.
A frame-mounted electric fuel pump located inside the fuel and water separator draws fuel from the fuel tank to provide pressurized fuel to the engine. The fuel pump contains a pressure relief valve for overpressure protection in the event of restricted flow.
The fuel injection system is controlled through the powertrain control module.
Engine Protection Mode
Ford diesel engines are equipped with engine protection and emission control systems. These systems monitor critical temperatures and pressures, and modify engine operation accordingly. These modified engine performance characteristics are normal.
If these modified engine performance characteristics persist for an extended period and either the service engine soon or powertrain malfunction, reduced power, electronic throttle control light is illuminated, have the system checked by an authorized dealer.
Service engine soon |
Powertrain malfunction, reduced power, electronic throttle control |
Diesel Lubrication System
It is important to change the engine oil at the recommended service intervals or when indicated by the information display to maintain oil viscosity. Extending the oil and filter change interval beyond the recommended interval can negatively affect engine performance, fuel economy and engine life. See
Engine Oil Check - 6.7L Diesel.
Engine and secondary cooling system
The cooling system contains a primary cooling loop to cool the engine and a secondary cooling loop to cool the transmission, charge air, and fuel. The coolant serves three primary purposes: to provide heat transfer, freeze point protection, and corrosion protection using additives.
Vehicles with diesel engines typically are used to carry heavy loads and accumulate mileage rapidly. These two factors may cause the additives in the coolant to wear out in a shorter time. You can find more information about coolant additives and coolant change intervals in the coolant chapter. See
General Maintenance Information.
Operating the engine with insufficient coolant or coolant additive can cause severe engine damage.
Selective catalytic reduction system
Your vehicle is equipped with a selective catalytic reduction system designed to reduce emission levels of nitrogen oxides from the exhaust of your diesel engine. This system relies on the use of Diesel Exhaust Fluid (DEF) that you must replenish at certain intervals. Failure to maintain proper DEF levels or if the DEF becomes contaminated will result in vehicle speed limitations or result in your vehicle entering an idle-only mode. See
Selective Catalytic Reductant System - Diesel.
Minor Troubleshooting Guide
If the engine won’t crank
WARNING:
Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling. |
Turn on the headlights. If the lights are dim, do not go on at all or when the ignition is turned to the start position, the lights become dim or go out, the battery connections may be loose or corroded, or the battery may be discharged. If there is a clicking or stuttering sound coming from the engine compartment when you turn the key to the start position, this may also indicate a loose or corroded battery connection.
Check the battery connections at the battery posts, cable connection to the engine grounding point and at the starter connection.
If you suspect a discharged battery, have it checked and corrected.
- 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, See
Jump Starting the Vehicle.
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.
- 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. See
Changing a Fuse.
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 DEF. Check the DEF. See
Selective Catalytic Reductant System - Diesel.