2023 FORD SUPER DUTY engine

Change the air filter element at the correctservice interval. See ScheduledMaintenance (page 591). Your vehicle maybe equipped with electronic engine air filtermaintenance minder, that providesoptimized service intervals and remindersbased on driving habits and environmentalconditions.
1.Clean any loose dirt or debris aroundthe air filter hosing.
2.Disconnect the mass air flow sensorelectrical connector, if required.
3.Remove the clips (x3) that secure theair filter housing cover. Remove the airfilter housing cover. Disconnect andpull the air intake tube away, asneeded.
4.Remove the air filter element from theair filter housing.
5.Inspect the air filter element for anydamage. Replace the air filter elementif the seal, paper, foam or steel meshhas any holes, cut or gouges.
6.Inspect the air filter housing for dirt,dust, snow, ice or debris in the aircleaner tray.
7.To install, reverse the removalprocedure. You can oscillate thehousing cover slightly left to right toassist with installation as needed, untilpositioned such that all three clips canbe re-engaged.
After operating your vehicle during heavysnowfall or extreme rain, do the following:
•Snow: At the earliest opportunity, openthe hood, clear any snow and ice fromthe air filter housing inlet.
•Extreme rain: The air filter elementdries out after approximately 15–30minutes of driving at highway speeds.
Note:Do not remove the foam block fromthe air cleaner tray.
RESETTING THE AIR FILTERREMINDER
1.Press the menu button on the steeringwheel to enter the instrument clusterdisplay main menu.
2.Select Vehicle Maintenance.
3.Select Engine Air Filter.
4.Press and hold the OK button until thesystem reset confirmation appears.
Note:The system displays 100% afterbeing successfully reset.
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ENGINE AIR FILTER - INFORMATION MESSAGES
ActionMessage
Indicates the engine air filter should be replaced at theearliest convenience.Replace Engine Air FilterSoon
Indicates an air filter at the end of useful life. After engineair filter replacement, you must reset the system in order tochange the status status See Resetting the IntelligentOil Life Monitor (page 445).
Replace Engine Air FilterNow
Indicates that there is a higher-than-expected restrictionacross the engine air filter, which could represent an air filterat the end of useful life or a filter with an obstruction. Whenthis displays, inspect the engine air filter and replace ifnecessary. If the air filter is not replaced, no reset is required,the minder will automatically reset once the obstruction iscleared after driving the vehicle for approximately an hour.If the air filter was replaced, you must reset the system inorder to change the status See Resetting the IntelligentOil Life Monitor (page 445).
Check Engine Air Filter SeeManual
Indicates that there is an error within the electronic air filtermaintenance minder system requiring service.Engine Air Filter Fault SeeManual
When this displays, inspect the engine air filter and replaceif necessary. If the air filter is not replaced, no reset isrequired, the minder will automatically reset once theobstruction is cleared after driving the vehicle for approxim-ately an hour. If the air filter was replaced, you must resetthe system in order to change the status See Resettingthe Intelligent Oil Life Monitor (page 445).
Engine Power ReducedInspect Air Filter
DRAINING THE FUEL FILTER
WATER TRAP
WARNING: Do not drain thewater-in-fuel separator while the engineis running. Failure to follow this warningmay result in fire, serious injury, death orproperty damage.
WARNING: Do not dispose of fuelin the household refuse or the publicsewage system. Use an authorized wastedisposal 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.
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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 level
to exceed this level, the water may passthrough to the engine and may cause fuelinjection equipment damage.
Filter Location
Use the tables below to find the locationof your filter.
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.
Draining the Diesel FuelConditioner Module
1.Switch the engine off.
2.Access the underside of your vehicle.
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COOLANT
CHECKING THE COOLANT LEVEL
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
WARNING: To reduce the risk ofpersonal injury, make sure the engine iscool before unscrewing the coolantpressure relief cap. The cooling systemis under pressure. Steam and hot liquidcan come out forcefully when you loosenthe cap slightly.
When the engine is cold, check theconcentration and level of the coolant atthe intervals listed in the scheduledmaintenance information. See ScheduledMaintenance (page 591).
Note:Make sure that the coolant level isbetween the MIN and the MAX marks onthe coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.This is normal.
Maintain coolant concentration within48% to 50%, which equates to a freezepoint between -29°F (-34°C) and -35°F(-37°C). Coolant concentration should bechecked using a refractometer. We do notrecommend the use of hydrometers orcoolant test strips for measuring coolantconcentration.
ADDING COOLANT
WARNING: Do not add coolantwhen the vehicle is on or the coolingsystem is hot. Failure to follow thisinstruction could result in personal injury.
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
WARNING: Do not allow the fluidto touch your skin or eyes. If thishappens, rinse the affected areasimmediately with plenty of water andcontact your physician.
WARNING: Do not put coolant inthe windshield washer reservoir. Ifsprayed on the windshield, coolant couldmake it difficult to see through thewindshield.
WARNING: Do not add coolantfurther than the MAX mark.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Note:Automotive fluids are notinterchangeable.
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It is very important to use predilutedcoolant approved to the correctspecification in order to avoid plugging thesmall passageways in the engine coolingsystem. See Capacities andSpecifications (page 520). Do not mixdifferent colors or types of coolant in yourvehicle. Mixing of engine coolants or usingan incorrect coolant may harm the engineor cooling system components and maynot be covered by the vehicle Warranty.
Note:If prediluted coolant is not available,use the approved concentrated coolantdiluting it to 50/50 with deionised ordistilled water. See Capacities andSpecifications (page 520). Using water thathas not been deionised may contribute todeposit formation, corrosion and pluggingof the small cooling system passageways.
Note: Coolants marketed for all makes andmodels may not be approved to ourspecifications and may cause damage tothe cooling system. Resulting componentdamage may not be covered by the vehicleWarranty.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
To top up the coolant level do thefollowing:
1.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2.Add prediluted coolant approved tothe correct specification. SeeCapacities and Specifications (page520).
3.Add enough prediluted coolant toreach the correct level.
4.Replace the coolant reservoir cap. Turnthe cap clockwise until it contacts thehard stop.
5.Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, add enoughprediluted engine coolant to bring thecoolant level to the correct level.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have yourvehicle checked as soon as possible.Operating an engine with a low level ofcoolant can result in engine overheatingand possible engine damage.
In case of emergency, you can add a largeamount of water without engine coolantin order to reach a vehicle service location.
Water alone, without engine coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
Alcohol and other liquids can cause enginedamage from overheating or freezing.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection ofthe coolant.
CHANGING THE COOLANT
For coolant change, see your authorizeddealer.
Changing the coolant is necessary atspecific mileage intervals listed in thescheduled maintenance information. SeeScheduled Maintenance (page 591).
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MANAGING THE COOLANTTEMPERATURE
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a longor steep grade in high ambienttemperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and thevehicle may not be able to acceleratewith full power until the coolanttemperature reduces.
WARNING: If you continue to driveyour vehicle when the engine isoverheating, the engine could stopwithout warning. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle.
You may notice a reduction in vehiclespeed caused by reduced engine power inorder to manage the engine coolanttemperature. Your vehicle may enter thismode if certain high-temperature andhigh-load conditions take place. Theamount of speed reduction depends onvehicle loading, grade and outsidetemperature. If this occurs, there is noneed to stop your vehicle. You cancontinue to drive. See Fail-Safe Cooling(page 425).
The air conditioning may automaticallyturn on and off during severe operatingconditions to protect the engine fromoverheating. When the coolanttemperature decreases to the normaloperating temperature, the air conditioningturns on.
If the coolant temperature gauge movesfully into the red zone, or if the coolanttemperature warning or service enginesoon messages appear in your informationdisplay, do the following:
1.Stop your vehicle as soon as it is safeto do so. Fully apply the parking brake,shift into park (P) or neutral (N).
2.Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop afterseveral minutes, follow the remainingsteps.
3.Switch the engine off and wait for it tocool. Check the coolant level.
4.If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5.If the coolant level is normal, restartthe engine and continue.
COOLANT – WARNING LAMPS
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone.
A warning lamp illuminates anda message may appear in theinformation display.
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COOLANT – INFORMATION MESSAGES
Description and ActionMessage
Displays when the engine temperature istoo high. Stop your vehicle as soon as it issafe to do so, switch the engine off andallow it to cool. If the problem persists, haveyour vehicle checked as soon as possible.See Checking the Coolant Level (page450).
High engine temperature Stop safely
CHANGING THE FUEL FILTER
- DIESEL
Your fuel filters must be changed at thecorrect service interval or when you see thelow fuel pressure message appear. Referto scheduled maintenance for the correctservice interval.
CHANGING THE FUEL FILTER
- GASOLINE
Your vehicle has a lifetime fuel filter thatintegrates with the fuel tank. It does notneed regular maintenance or replacement.
DRIVE BELT ROUTING
OVERVIEW - 6.7L DIESEL,
VEHICLES WITH: 110-120V 2KW
PICKUP BED POWER OUTLET/
DUAL GENERATORS
Drivebelt furthest from theengine.A.
Drivebelt closest to the engine.B.
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DRIVE BELT ROUTING
OVERVIEW - 6.7L DIESEL,
VEHICLES WITH: DUAL
GENERATORS
DRIVE BELT ROUTING
OVERVIEW - 6.7L DIESEL,
VEHICLES WITH: SINGLE
GENERATOR
DRIVE BELT ROUTING
OVERVIEW - 6.8L, GASOLINE,
VEHICLES WITH: DUAL
GENERATORS
Drivebelt furthest from theengine.A.
Drivebelt closest to the engine.B.
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