2023 FORD SUPER DUTY check engine

DRIVING ON SNOW AND ICE
WARNING: If you are driving inslippery conditions that require tirechains or cables, then it is critical thatyou drive cautiously. Keep speeds down,allow for longer stopping distances andavoid aggressive steering to reduce thechances of a loss of vehicle controlwhich can lead to serious injury or death.If the rear end of your vehicle slides whilecornering, steer in the direction of theslide until you regain control of yourvehicle.
On ice and snow, you should drive moreslowly than usual. Your vehicle has a fourwheel anti-lock brake system, do not pumpthe brake pedal. See Anti-Lock BrakingSystem Limitations (page 249).
BREAKING-IN
Your vehicle requires a break-in period. Forthe first 1,000 mi (1,600 km), avoid drivingat high speeds, heavy braking, aggressiveshifting or using your vehicle to tow. Duringthis time, your vehicle may exhibit someunusual driving characteristics.
DRIVING ECONOMICALLY
The following helps to improve fuelconsumption:
•Drive smoothly, accelerate gently andanticipate the road ahead to avoidheavy braking.
•Regularly check your tire pressures andmake sure that they are inflated to thecorrect pressure.
•Follow the recommended maintenanceschedule and carry out therecommended checks.
•Plan your journey and check the trafficbefore you set off. It is more efficientto combine errands into a single tripwhenever possible.
•Avoid idling the engine in cold weatheror for extended periods. Start theengine only when you are ready to setoff.
•Do not carry unnecessary weight in yourvehicle as extra weight wastes fuel.
•Do not add unnecessary accessoriesto the exterior of your vehicle, forexample running boards. If you use aroof rack, remember to fold it down orremove it when not in use.
•Do not shift into neutral when you arebraking or when your vehicle is slowingdown.
•Shut all windows when driving at highspeeds.
•Switch off all electric systems whennot in use, for example air conditioning.Make sure that you unplug anyaccessories from the auxiliary powerpoints when not in use.
DRIVING IN SPECIAL
CONDITIONS
DRIVING THROUGH MUD ANDWATER
WARNING: Do not spin the wheelsat over 34 mph (55 km/h). The tires mayfail and injure a passenger or bystander.
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POST-CRASH ALERT SYSTEM
WHAT IS THE POST-CRASHALERT SYSTEM
The system helps draw attention to yourvehicle in the event of a serious impact.
HOW DOES THE POST-CRASHALERT SYSTEM WORK
The system is designed to turn the hazardflashers on, turn the courtesy lamps on,intermittently sound the horn and unlockall doors in the event of a serious impactthat deploys an airbag or the seatbeltpretensioners.
POST-CRASH ALERT SYSTEMLIMITATIONS
Depending on applicable laws in thecountry your vehicle was built for, the horndoes not sound in the event of a seriousimpact.
SWITCHING THE POST-CRASHALERT SYSTEM OFF
Press the hazard flasher switch, the unlockbutton on the remote control, the panicbutton on the remote control or cycle theignition to switch the system off.
Note:The alert turns off when the vehiclebattery runs out of charge.
AUTOMATIC CRASH SHUTOFF
WHAT IS AUTOMATIC CRASHSHUTOFF
The automatic crash shutoff is designedto stop the fuel going to the engine in theevent of a moderate or severe crash.
Note:Not every impact causes a shutoff.
AUTOMATIC CRASH SHUTOFFPRECAUTIONS
WARNING: If your vehicle has beeninvolved in a crash, have the fuel systemchecked. Failure to follow this instructioncould result in fire, personal injury ordeath.
RE-ENABLING YOUR VEHICLE
1.Switch the ignition off.
2.Attempt to start your vehicle.
3.Switch the ignition off.
4.Attempt to start your vehicle.
Note:If your vehicle does not start after thethird attempt, have your vehicle checked assoon as possible.
RECOVERY TOWING
ACCESSING THE FRONT TOWINGPOINT
WARNING: Using recovery hooksis dangerous and should only be done bya person familiar with proper vehiclerecovery safety practices. Improper useof recovery hooks may cause hook failureor separation from the vehicle and couldresult in serious injury or death.
WARNING: Slowly remove theslack from the recovery strap prior topulling. Failure to do so can introducesignificantly higher loads which cancause the recovery hooks to break off, orthe recovery strap to fail which can causeserious injury or death.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCrash and Breakdown Information

We recommend the use of a wheel lift anddollies or flatbed equipment to tow yourvehicle. Vehicle damage could occur iftowed incorrectly, or by any other means.
Front-wheel and rear-wheel drive vehiclesmust have their designated drive wheelsoff the ground regardless of towingdirection. Use tow dollies to preventdamage to the transmission.
All-wheel or four-wheel drive vehiclesrequire that all wheels be off the groundusing a wheel lift and dollies or flatbedequipment. This prevents damage to thetransmission and drive system.
Note:You need to switch on the ignition tounlock the steering.
Note:Make sure you check the steeringcolumn before towing. It could lock if thebattery is dead.
FAIL-SAFE COOLING
WHAT IS FAIL-SAFE COOLING
Fail-safe cooling allows you to temporarilydrive your vehicle before any incrementalcomponent damage occurs due tooverheating.
The fail-safe distance depends on outsidetemperature, vehicle load and terrain.
HOW DOES FAIL-SAFE COOLINGWORK
If the engine reaches a presetover-temperature condition, the engineautomatically switches to alternatingcylinder operation. Each disabled cylinderacts as an air pump and cools the engine.
When this occurs, your vehicle stilloperates, however:
•Engine power is limited.
•The air conditioning system turns off.
Continued operation increases the enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, youcan re-start the engine.
Note:Have your vehicle checked as soonas possible to minimize engine damage.
DRIVING WHEN FAIL-SAFE MODEIS ACTIVATED
WARNING: Fail-safe mode is foruse during emergencies only. Operateyour vehicle in fail-safe mode only aslong as necessary to bring your vehicleto rest in a safe location and seekimmediate repairs. When in fail-safemode, your vehicle will have limitedpower, will not be able to maintainhigh-speed operation, and maycompletely shut down without warning,potentially losing engine power, powersteering assist, and power brake assist,which may increase the possibility of acrash resulting in serious 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.
Continued operation increases the enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, youcan re-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCrash and Breakdown Information

Your vehicle has limited engine powerwhen in the fail-safe mode, drive yourvehicle with caution. Your vehicle does notmaintain high-speed operation and theengine may operate poorly.
Remember that the engine is capable ofautomatically shutting down to preventengine damage. In this situation:
1.Pull off the road as soon as safelypossible and switch the engine off.
2.If you are a member of a roadsideassistance program, we recommendthat you contact your roadsideassistance service provider.
3.If this is not possible, wait for a shortperiod of time for the engine to cool.
4.Check the coolant level. If the coolantlevel is at or below the minimum mark,add prediluted coolant immediately.
5.When the engine temperature cools,you can re-start the engine. Have yourvehicle checked as soon as possible tominimize engine damage.
Note:Driving your vehicle without repairincreases the chance of engine damage.
FAIL-SAFE COOLING INDICATORS
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone.
A warning lamp illuminates anda message may appear in theinstrument cluster display.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMCrash and Breakdown InformationE103308 E67028

Note: If completed successfully, theinformation display shows Neutral TowEnabled Leave Transmission in Neutral.This indicates that your vehicle is safe totow with all wheels on the ground.
Note:If you do not see a confirmationmessage in the instrument cluster display,you must perform the procedure again fromthe beginning.
Note:You may hear noise as the transfercase shifts into its neutral position. This isnormal.
8.Release the brake pedal and leave thetransmission in neutral (N) and switchyour vehicle off by pressing the pushbutton ignition switch once withoutpressing the brake pedal or turning thekey as far toward the off position.
Note:Vehicles with keys do not turn to theoff position when the transmission is inneutral (N). You must leave the key in theignition when towing. Use the keyless entrykeypad or an extra set of keys to lock andunlock your vehicle.
Switching Neutral Tow Off
1.With your vehicle properly secured tothe tow vehicle, place your vehicle inaccessory mode by pressing the pushbutton ignition switch once withoutpressing the brake pedal or by turningthe ignition key to the on position.
2.Press and hold the brake pedal.
3.Shift the transmission to Park (P) andcontinue holding the brake pedal untilthe instrument cluster display shows2H and Neutral Tow Disabled.
4.Release the brake pedal.
Note:If completed successfully, theinstrument cluster displays 2H and NeutralTow Disabled.
Note:You must perform the switchingneutral tow on and switching neutral towoff procedures again from the beginning ifthe indicator light and message do notdisplay.
Note:You may hear a noise as the transfercase shifts out of its neutral position. Thisis normal.
5.Apply the parking brake, thendisconnect your vehicle from the towvehicle.
6.Release the parking brake, start theengine, and shift into drive (D) to makesure the transfer case is out of theneutral tow position.
7.If the transfer case does notsuccessfully shift out of its neutralposition, set the parking brake. Haveyour vehicle checked as soon aspossible.
Resolving the Shift Delayed PullForward Message
1.Press and hold the brake pedal.
2.Start your vehicle.
3.Shift into neutral (N).
4.With the vehicle running, shift into drive(D) and let the vehicle roll forward upto 3 ft (1 m).
Note:You may hear a noise as the transfercase shifts out of its neutral position. Thisis normal.
5.Make sure the instrument clusterdisplays Neutral Tow Disabled.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMTowing Your Vehicle

MAINTENANCE PRECAUTIONS
Service your vehicle regularly to helpmaintain its roadworthiness and resalevalue. There is a large network ofauthorized dealers that are there to helpyou with their professional servicingexpertise. We believe that their speciallytrained technicians are best qualified toservice your vehicle properly and expertly.They are supported by a wide range ofhighly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out whichparts and services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. See Capacities andSpecifications (page 520).
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with theengine running in an enclosed space,unless you are sure you have enoughventilation.
•Keep all open flames and other burningmaterial, such as cigarettes, away fromthe battery and all fuel related parts.
•Set the parking brake, shift thetransmission to park (P) and block thewheels.
OPENING AND CLOSING THE
HOOD
1.Inside the vehicle, pull the hood releasehandle located under the left hand sideof the instrument panel.
2.Go to the front of your vehicle andlocate the secondary release leverunder the front of the hood near thecenter of your vehicle.
3.Raise the hood until the lift cylindershold it open.
4.To close, lower the hood and makesure that it is closed properly and fullylatched.
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenance E166491 E190266

UNDER HOOD OVERVIEW - 6.7L DIESEL
Battery. See Changing the 12V Battery (page 457).A
Under hood fuse box. See Accessing the Under Hood Fuse Box (page 430).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Secondary fuel filter. See Changing the Fuel Filter (page 453).D
Engine oil filler cap. See Checking the Engine Oil Level (page 444).E
Engine cooling system coolant reservoir - primary high-temperature coolingsystem. See Checking the Coolant Level (page 450).F
Brake fluid reservoir. See Checking the Brake Fluid (page 249).G
Battery. See Changing the 12V Battery (page 457).H
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).I
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).J
Secondary cooling system coolant reservoir. See Checking the Coolant Level(page 450).K
Air filter assembly. See Changing the Engine Air Filter (page 445).L
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UNDER HOOD OVERVIEW - 6.8L, GASOLINE
Engine compartment fuse box. See Locating the Under Hood Fuse Box (page430).A
Battery. See Changing the 12V Battery (page 457).B
Engine oil dipstick. See Engine Oil Dipstick Overview (page 444).C
Engine oil filler cap. See Checking the Engine Oil Level (page 444).D
Brake fluid reservoir. See Checking the Brake Fluid (page 249).E
Windshield washer fluid reservoir. See Adding Washer Fluid (page 115).F
Engine coolant reservoir. See Checking the Coolant Level (page 450).G
Power steering fluid reservoir. See Checking the Hydraulic Power SteeringFluid (page 280).H
Air cleaner assembly. See Changing the Engine Air Filter (page 445).I
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2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMMaintenanceE398419