If your vehicle is equipped with a dieselengine, an Intelligent Oil Life Monitor™calculates the proper oil change serviceinterval. When the information displayindicates: OIL CHANGE REQUIRED, changethe engine oil and oil filter. SeeInformation Displays (page 111).
The engine oil filter protects your engineby filtering harmful, abrasive or sludgeparticles and particles significantly smallerthan most available will-fit filters. SeeMotorcraft Parts (page 419).
1. Unscrew the oil filter and oil pan drainplug and wait for the oil to drain.
2. Replace the filter.
3. Reinstall the oil pan drain plug.
4. Refill the engine with new oil. SeeCapacities and Specifications (page427).
5. For diesel engines, you need to resetthe Intelligent Oil Life Monitor™. SeeInformation Displays (page 111).
Engine lubrication for severeservice operation
The following conditions define severeoperation for which engine operation withSAE 5W-40 API CJ-4 is recommended. Oiland oil filter change intervals will bedetermined by the Intelligent Oil LifeMonitor™ as noted previously.
•Frequent or extended idling (over 10minutes per hour of normal driving).
•Low-speed operation/stationary use.
•If vehicle is operated in sustainedambient temperatures below -9°F(-23°C) or above 100°F (38°C).
•Frequent low-speed operation,consistent heavy traffic less than25 mph (40 km/h).
•Operating in severe dust conditions.
•Operating the vehicle off road.
•Towing a trailer over 1,000 mi(1,600 km).
•Sustained, high-speed driving at GrossVehicle Weight Rating (maximumloaded weight for vehicle operation).
•Use of fuels with sulfur content otherthan ultra-low sulfur diesel (ULSD).
•Use of high-sulfur diesel fuel.
CHANGING THE COALESCER
FILTER ELEMENT
WARNING
Do not dispose of engine oil or oilfilters in the household refuse or thepublic sewage system. Use anauthorized waste disposal facility.
Do not clean or recondition the filterelement.
We recommend that you demand the useof genuine Ford and Motorcraft® partswhenever your vehicle requires scheduledmaintenance or repair. Use the correctspecification filter element. SeeMotorcraft Parts (page 418).
Note:Operating your vehicle without a filterelement or with an unapproved filterelement may result in damage to the turbocharger or exchanger and could lead toengine damage that may not be covered bythe vehicle Warranty.
330
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance
Coolant Change
At specific mileage intervals, as listed inthe scheduled maintenance information,the coolant should be changed. Theinformation display may display a messageto change coolant at this time. Addprediluted coolant approved to the correctspecification. See Capacities andSpecifications (page 415).
Engine-driven Cooling Fan (FanClutch)
Your vehicle may have an engine drivencooling fan drive (also called a fan clutch).This fan drive changes the fan speed tomatch the vehicle’s changing cooling airflow requirements. Fan speed, fan noiselevel and fuel consumption all will increasebased on the driving conditions thatinclude trailer towing, hill climbing, heavyloads, high speed and high ambienttemperature, individually or in combination.
The fan drive is designed to provide theminimum fan speed (and resultingminimum fan noise and fuel consumption)required to meet the ever changing vehiclecooling air flow requirements. You will hearthe amount of fan noise increasing anddecreasing as the engine powerrequirements and vehicle driving conditionschange as you drive. This is to be expectedas being normal to the operation of yourvehicle. High levels of fan noise might alsobe heard when your engine is first started,and should normally decrease after drivingfor a short time.
AUTOMATIC TRANSMISSION
FLUID CHECK
Have an authorized dealer check andchange the transmission fluid and filter atthe correct service interval. SeeScheduled Maintenance (page 573).
Do not use supplemental transmissionfluid additives, treatments or cleaningagents. The use of these materials mayaffect transmission operation and resultin damage to internal transmissioncomponents.
Checking Automatic TransmissionFluid
For scheduled intervals of the fluid checksand changes, See ScheduledMaintenance (page 573). Yourtransmission does not consume fluid.However, the fluid level should be checkedif the transmission is not working properly,i.e., if the transmission slips or shifts slowlyor if you notice some sign of fluid leakage.
Automatic transmission fluid expandswhen warmed. To obtain an accurate fluidcheck, drive the vehicle until it is at normaloperating temperature (approximately19 mi (30 km)). Verify that thetransmission fluid temperature gauge,located on the instrument cluster, is withinnormal range.
1. Drive the vehicle 19 mi (30 km)until itreaches normal operating temperature.
2.Park the vehicle on a level surface andengage the parking brake.
3.With the engine running, parking brakeengaged and your foot on the brakepedal, move the gearshift lever throughall of the gear ranges. Allow sufficienttime for each gear to engage.
4.Latch the gearshift lever in P and leavethe engine running.
5. Remove the dipstick, wiping it cleanwith a clean, dry lint free rag. Ifnecessary, refer to the Under HoodOverview in this chapter for thelocation of the dipstick.
340
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance
State or local regulations on volatileorganic compounds may restrict the useof methanol, a common windshield washerantifreeze additive. Washer fluidscontaining non-methanol antifreezeagents should be used only if they providecold weather protection without damagingthe vehicle’s paint finish, wiper blades orwasher system.
DRAINING THE FUEL FILTER
WATER TRAP - 6.7L DIESEL
WARNING
Do not dispose of fuel in thehousehold refuse or the publicsewage system. Use an authorizedwaste disposal facility.
Your vehicle has a diesel fuel conditionermodule. The module is mounted betweenthe outboard side of the fuel tank and theframe rail.
Note:The module is at the front of the fueltank or at the front of the aft-axle fuel tankon some models.
You should drain water from themodule assembly whenever thewarning light illuminates or amessage appears in the informationdisplay advising you to drain the waterseparator. This occurs when approximately6.76 fl oz (200 ml) of water accumulatesin the module. If you allow the water levelto exceed this level, the water may passthrough to the engine and may cause fuelinjection equipment damage.
Draining the Diesel FuelConditioner Module
1. Switch the engine off.
2. Access the underside of your vehicle.
3. The diesel fuel conditioner module ison the left-hand frame rail.
345
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance E226475
2
4. Drain the diesel fuel conditionermodule. Turn the drain plugcounterclockwise until it stops. Do notuse any tools to loosen the drain plug.Drain the filter, approximately0.5 gal(2 L), into an appropriate container.Do not re-use the fuel drained from themodule.
5.Tighten the drain plug, turn it clockwiseuntil it stops and you feel a strongresistance. Do not use any tools totighten the drain plug.
6. Switch the ignition on for 30 secondsand then switch the ignition off.Repeat this operation six times in a rowto purge any trapped air from the fuelsystem.
FUEL FILTER - 6.2L/6.8L
Your vehicle is equipped with a lifetimefuel filter that is integrated with the fueltank. Regular maintenance or replacementis not needed.
CHANGING THE 12V BATTERY
WARNINGS
Batteries normally produce explosivegases which can cause personalinjury. Therefore, do not allowflames, sparks or lighted substances tocome near the battery. When working nearthe battery, always shield your face andprotect your eyes. Always provide correctventilation.
When lifting a plastic-cased battery,excessive pressure on the end wallscould cause acid to flow through thevent caps, resulting in personal injury anddamage to the vehicle or battery. Lift thebattery with a battery carrier or with yourhands on opposite corners.
Keep batteries out of reach ofchildren. Batteries contain sulfuricacid. Avoid contact with skin, eyes orclothing. Shield your eyes when workingnear the battery to protect against possiblesplashing of acid solution. In case of acidcontact with skin or eyes, flushimmediately with water for a minimum of15 minutes and get prompt medicalattention. If acid is swallowed, call aphysician immediately.
Battery posts, terminals and relatedaccessories contain lead and leadcompounds. Wash hands afterhandling.
346
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance3
E226212
WARNINGS
This vehicle may be fitted with morethan one battery. Removing thebattery cables from only one batterydoes not disconnect your vehicle electricalsystem. Make sure you disconnect thebattery cables from all batteries whendisconnecting power. Failure to do so maycause serious personal injury or propertydamage.
Your vehicle is fitted with a Motorcraftmaintenance-free battery which normallydoes not require additional water.
When a battery replacement is required,you must use a recommendedreplacement battery that matches theelectrical requirements of the vehicle.
Note:After cleaning or replacing thebattery, make sure you reinstall the batterycover or shield.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect the low voltage battery performanceand durability. This may also affect theperformance of other electrical systems inthe vehicle.
For longer, trouble-free operation, keep thetop of the battery clean and dry.
If you see any corrosion on the battery orterminals, remove the cables from theterminals and clean with a wire brush. Youcan neutralize the acid with a solution ofbaking soda and water.
Because your vehicle’s engine iselectronically controlled by a computer,some control conditions are maintainedby power from the battery. When thebattery is disconnected or a new batteryis installed, the engine must relearn its idleand fuel trim strategy for optimumdriveability and performance. Flexible fuelvehicles (FFV) must also relearn theethanol content of the fuel for optimumdriveability and performance.
To restore the settings, do the following:
1. Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start yourvehicle.
5. Run the engine until it reaches normaloperating temperature. While theengine is warming up, complete thefollowing: Reset the clock. See AudioSystem (page 441). Reset the powerwindows bounce-back feature. SeeWindows and Mirrors (page 95).Reset the radio station presets. SeeAudio System (page 441).
6.Allow the engine to idle for at least oneminute.
7.Drive the vehicle at least 10 mi (16 km)to completely relearn the idle trim andfuel trim strategy.
Note:If you do not allow the engine torelearn the idle and fuel trim strategy, theidle quality of your vehicle may be adverselyaffected until the engine computereventually relearns the idle trim and fueltrim strategy.
Note:For flexible fuel vehicles, if you areoperating on E85, you may experience poorstarts or an inability to start the engine anddriveability problems until the fuel trim andethanol content have been relearned.
347
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance
5.Remove the air filter element from theair filter housing.
6. Remove the foam filter from the airfilter housing.
7. Install in the reverse order.
Air Filter Restriction Gauge
The air filter restriction gauge is in theupper housing of the air filter assembly.
Check the air filter restriction gaugewhenever you open the hood to carry outgeneral engine maintenance or at leastevery 7,500 mi (12,000 km). If you operateyour vehicle in extremely dusty conditions,check the gauge at least every 500 mi(800 km) or two weeks, whichever occursfirst. Change the air filter element whenthe restriction gauge reads near thechange filter line and the gauge is yellow.Allowing the restriction gauge to reachmaximum affects engine performance andfuel economy.
358
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
MaintenanceE226430
5
6 E226428
Operating your vehicle in heavy snowfallor extreme rain conditions may allowexcessive amounts of snow or water intothe air intake system. This could restrict airflow and cause the engine to lose poweror shut down.
After installing a new air filter element, youmust reset the gauge by pressing the resetbutton.
After operating your vehicle during in heavysnowfall or extreme rain, do the following:
•Snow: At the earliest opportunity, openthe hood and clear any snow and icefrom the air filter housing inlet andreset the air filter restriction gauge.
•Extreme rain: The air filter elementdries out after approximately 15–30minutes of driving at highway speeds.At the earliest opportunity, open thehood and reset the air filter restrictiongauge.
Note:Do not remove the foam filter.
CHANGING THE ENGINE-
MOUNTED AND DIESEL FUEL
CONDITIONER MODULE FUEL
FILTERS - 6.7L DIESEL
WARNING
Do not dispose of fuel in thehousehold refuse or the publicsewage system. Use an authorizedwaste disposal facility.
Your vehicle has two fuel filters. The firstfilter mounts on top of the engine on theleft-hand side. The second filter is insidethe diesel fuel conditioner module. Themodule is mounted between the outboardside of the fuel tank and the frame rail.
Note:The module is at the front of the fueltank or at the front of the aft-axle fuel tankon some models.
Regular fuel filter changes are animportant part of engine maintenance;failing to keep with the scheduledmaintenance could lead to engineperformance issues and fuel injectionsystem damage. See ScheduledMaintenance (page 573).
Use only recommended service partsconforming to specifications. SeeMotorcraft Parts (page 418).
Note:Using fuel that has high levels ofimpurities may require more frequent filterreplacements than the service intervalspecifies.
Diesel Fuel Conditioner ModuleFilter
Filter Location
Use the tables below to find the locationof your filter.
359
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Maintenance
Pick-up Truck
Filter LocationBox LengthCab Type
Left side of fuel tank.8 ft (2.4 m)Regular.
6.75 ft (2.057 m)SuperCab.
In front of fuel tank.8 ft (2.4 m)
6.75 ft (2.057 m)Super Crew Cab.Left side of fuel tank.8 ft (2.4 m)
Chassis Cab
Filter LocationFuel Tank TypeCab Type
Right side of fuel tank.Single midship fuel tankChassis Cab.
Right side of midship fueltank.Aft axle/midship fuel tanksChassis Cab.
Front of fuel tank.Single aft axle fuel tankChassis Cab.
Removal
1. Disconnect the fuel line quick connectcoupling from the in tank fuel pump.
2. Locate your filter.
360
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
MaintenanceE247666