cooling FORD SUPER DUTY 2023 User Guide

Before you start manual regeneration, dothe following:
•Make sure the parking brake is on.
•Shift into park (P) on stable, levelground.
•Park your vehicle outside of anystructure.
•Park your vehicle 10–15 ft (3–5 m)away from any obstructions and awayfrom materials that can easily combustor melt, for example paper, leaves,petroleum products, fuels, plastics andother dry organic material.
•Make sure there is a minimum of 1/8tank of fuel.
•Make sure all fluids are at proper levels.
DIESEL PARTICULATE FILTERMANUAL REGENERATIONLIMITATIONS
You cannot use manual regeneration untilthe diesel particulate filter load percentagehas reached 100% or Full. The dieselparticulate filter load percentagefluctuates up and down when driving yourvehicle due to active and passiveregenerations.
If your vehicle is operated with significantstationary operation, low speed drivecycles less than 25 mph (40 km/h), shortdrive cycles, drive time less than 15 minutesor the vehicle does not fully warm up,passive and active regeneration may notsufficiently clean the diesel particulatefilter system.
Aftermarket devices or modifications tothe exhaust system may reduce theeffectiveness of the exhaust system aswell as cause damage to the exhaustsystem or engine. This may also degradevehicle performance and could lead toengine damage that may not be coveredby the vehicle Warranty.
STARTING DIESEL PARTICULATEFILTER MANUAL REGENERATION
Start with your vehicle engine and when ithas reached the normal operatingtemperature, press the information displaycontrol button on the steering wheel. SeeInstrument Cluster Display (page 143).
If the diesel particulate filter is near or atsaturation, a message requestingpermission to initiate filter cleaningappears in the information display. SeeDiesel Particulate Filter – InformationMessages (page 224). Answer yes to thisprompt and then follow the next promptsregarding exhaust position required toinitiate manual regeneration. Be sure tounderstand each prompt. If you are notsure what is being asked by each prompt,contact an authorized dealer. The displayconfirms the operation has started andwhen it has finished. You can also drive toclean the filter.
When the system is at the pointof oversaturation, themalfunction indicator lampilluminates and a message appears in theinformation display. You cannot initiatefilter cleaning. You must have your vehiclechecked as soon as possible.
Once manual regeneration starts, enginespeed increases and the cooling fan speedincreases. You will hear a change in audiblesound due to engine speed and cooling fanspeed increases.
It is not necessary to open the hood on theengine compartment. Once manualregeneration completes, the engine speedreturns to normal idling. The exhaustsystem remains very hot for severalminutes even after regeneration iscomplete. Do not reposition the vehicleover materials that could burn until the
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Manually Shifting Gears in Manual(M)
Use this feature to select a specific gear.
Note:We recommend using this feature forengine braking, driving on hilly ormountainous roads, or when towing a trailer.See Towing a Trailer (page 365).
•Shift to manual (M) to switch thefeature on.
•Press the upper (+) button to upshift.
•Press the lower (-) button todownshift.
•Shift to drive (D) to switch the featureoff.
USING PROGRESSIVE RANGE
SELECTION
Progressive range selection gives you theability to lock out gears from the automaticshifting range. This could provide you withan improved driving experience by reducingtransmission shifts, for example, in slipperyconditions or steep slopes.
With the transmission in drive (D), pressthe - button to begin to switch the featureon.
Press the - button again to continue lockingout higher gears. Beginning with the highestgear, the instrument cluster will indicatethe current gear and highest gear available.For example, press the - button twice tolock out 10th and 9th gears.
Note:The instrument cluster will indicatethe current gear and highest gear available.
Press the + button to unlock gears to allowthe transmission to shift to higher gears.
Note: The transmission automaticallyshifts within the gear range you select.
AUTOMATIC TRANSMISSION
AUDIBLE WARNINGS
Sounds if any of the following occur:
•You switch your vehicle off beforeshifting into park (P).
•You open the driver door before shiftinginto park (P).
POWER TAKE-OFF (IF EQUIPPED)
HOW DOES THE POWER TAKE-OFF WORK
Auxiliary equipment called power take-off,or PTO, is often added to the engine ortransmission to operate utility equipment.Examples include a wheel-lift for towtrucks, cranes, tools for construction or tireservice, and pumping fluids. PTOapplications draw auxiliary horsepowerfrom the powertrain, often while thevehicle is stationary. In this condition, thereis limited cooling air flow through theradiator and around the vehicle thatnormally occurs when a vehicle is moving.The aftermarket PTO system installer,having the most knowledge of the finalapplication, is responsible for determiningwhether additional chassis heat protectionor powertrain cooling is required, andalerting the user to the safe and properoperation.
Note:Use of auxiliary equipment thatexceeds the maximum Power Take-Off(PTO) load specified in our Truck BodyBuilders Layout Book can adversely affectthe performance of the powertrain system.Refer to the Body Builders Layout Book forinstructions about the appropriateinstallation of additional equipment.
For additional information, visitwww.fordbbas.com/home.
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WHAT IS HILL DESCENT
CONTROL
Hill descent control allows the driver to setand maintain vehicle speed whiledescending steep slopes in various surfaceconditions.
HOW DOES HILL DESCENT
CONTROL WORK
Hill descent control can maintain vehiclespeeds on downhill slopes between2–20 mph (3–32 km/h). Above 20 mph(32 km/h), the system remains on but thedescent speed cannot be set ormaintained.
Note:The system does not function below2 mph (3 km/h).
The system requires a cool down intervalafter a period of sustained use. Hill descentcontrol provides a warning in the messagecenter when the system is about todisengage for cooling. At this time,manually apply the brakes as needed tomaintain descent speed.
Note:The amount of time that the systemcan remain active before cooling varies withconditions.
HILL DESCENT CONTROL
PRECAUTIONS
WARNING: The system does notcontrol speed in low traction conditionsor extremely steep slopes. The systemis designed to be an aid and does notrelieve you of your responsibility to drivewith due care and attention. Failure tofollow this instruction could result inpersonal injury.
WARNING: The system does notreplace the parking brake. When youleave your vehicle, always apply theparking brake.
SWITCHING HILL DESCENT
CONTROL ON AND OFF
Press the button on theinstrument panel. A lightilluminates and a tone soundswhen the system is active.
SETTING THE HILL DESCENT
SPEED
To increase or decrease the descent speed,press the accelerator or brake pedal, or usethe SET + and SET - buttons on thesteering wheel. Once you reach thepreferred speed remove your feet from thepedals.
HILL DESCENT CONTROL
INDICATOR
Illuminates when you switch hilldescent control on.
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HILL DESCENT CONTROL – TROUBLESHOOTING
HILL DESCENT CONTROL – INFORMATION MESSAGES
ActionMessage
Your vehicle speed requirement for off-road modeentry has not been met.For Hill Descent Reduce SpeedXX MPH/km/h or Less
You need to select a transmission gear for hill descentmode.For Hill Descent Select Gear
Hill descent control mode is deactivated and you mustresume control.Hill Descent Driver ResumeControl
A hill descent system fault is present.Hill Descent Control Fault
The hill descent system is cooling due to overuse.Hill Descent Control Off SystemCooling
The hill descent system cannot activate while CruiseControl is actively controlling speed.Hill Descent Control not avail-able with Cruise Control Active
HILL DESCENT CONTROL
VIDEOS
Hill Descent Control
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Your vehicle may have a temporary orconventional spare tire. A temporary sparetire is different in diameter or width,tread-type, or is from a differentmanufacturer than the road tires on yourvehicle. Consult information on the tirelabel or Safety Compliance label forlimitations when using.
When towing a trailer:
•Obey country specific regulations fortowing a trailer.
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 mi (80 km).
•When stopped in congested or heavytraffic during hot weather, place thetransmission in park (P) to aid engineand transmission cooling and to helpA/C performance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off when you aretowing on long, steep slopes.
•Shift to a lower gear when driving downa long or steep hill. Do not continuouslyapply the brakes, as they may overheatand become less effective.
•If your transmission has Grade Assistor Tow/Haul, use this feature whentowing. This provides engine brakingand helps eliminate excessivetransmission shifting for optimum fueleconomy and transmission cooling.
•If your vehicle has AdvanceTrac withroll stability control, this system mayturn on during typical corneringmaneuvers with a heavily loaded trailer.This is normal. Turning the corner at aslower speed when towing may reducethis tendency.
•Allow more distance for stopping witha trailer attached. Anticipate stops andgradually brake.
•Avoid parking on a slope. However, ifyou must park on a slope, turn thesteering wheel to point your vehicletires away from traffic flow, set theparking brake, place the transmissionin park (P) and place wheel chocks infront and back of the trailer wheels.
Note:Chocks are not included with yourvehicle.
LAUNCHING OR RETRIEVING
A BOAT OR PERSONAL
WATERCRAFT
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level torise above the bottom edge of the rearbumper.
•Do not allow waves to break higherthan 6 in (15 cm) above the bottomedge of the rear bumper.
Exceeding 6 in (15 cm) could allow waterto enter vehicle components, causinginternal damage to the components andaffecting driveability, emissions andreliability.
Note:Replace the rear axle lubricantanytime the rear axle has been submergedin water.
Note:Disconnect the trailer wiringconnector before backing the trailer into thewater.
Note:Reconnect the trailer wiringconnector after removing the trailer fromthe water.
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•If a large obstacle such as a rockcannot be avoided, choose a path thatplaces the rock directly under the tirerather than the undercarriage of thevehicle. This will help prevent damageto the vehicle.
•Ditches and washouts should becrossed at a 45° angle, allowing eachwheel to independently cross theobstacle.
Hill Climbing
WARNING: Extreme care shouldbe used when steering the vehicle inreverse down a slope so as not to causethe vehicle to swerve out of control.
•Always attempt to climb a steep hillalong the fall line of the slope and notdiagonally.
•If the vehicle is unable to make it upthe hill, DO NOT attempt to turn backdown the slope. Place the vehicle inlow range and slowly back down inreverse.
•When descending a steep slope, selectlow gear and engage hill descentcontrol. Use the throttle and brakepedals to control your descent speed.
Note:Hill descent control is functional inreverse and should be used in this situation.
DRIVING THROUGH WATERLIMITATIONS
WARNING: Do not attempt tocross a deep, fast flowing body of water.Failure to follow this instruction couldresult in the loss of control of yourvehicle, personal injury or death.
Determine the depth and speed of thecurrent before attempting a water crossing.As the water depth increases, reduce yourvehicle speed to avoid potential vehicledamage.
The key to a safe crossing is the waterdepth, current and bottom of the water'scondition. On soft bottoms, the vehiclesinks in, effectively increasing the waterlevel on the vehicle. Make sure to considerthis when determining the depth of water.Be aware that obstacles and debris maybe beneath the water’s surface.
Note:Cross flowing water at an angleheading slightly upstream.
Note:Tread lightly and avoid damage tothe environment.
Drive slowly when crossing water. Startvery slowly when entering, then buildmomentum. Proceed with a constant slowspeed lightly pressing on the accelerator.Ease off the accelerator as you reach theother side to diminish the front wave. Applythe accelerator slowly and as necessaryto climb out of the other side.
Note:Do not try to accelerate through thewater crossing.
When driving too fast in water or throughdeep water, the engine, transmission,transfer case, axles, electrical componentsor vehicle interior could ingest water.Muddy waters can reduce the coolingsystem effectiveness by depositing debrisinto the radiator. Water can causepermanent damage that may not becovered by your vehicle warranty. Seebelow for your vehicle’s capabilities.
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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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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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IDENTIFYING THE FUSES IN THE UNDER HOOD FUSE BOX
Protected ComponentRatingItem
Cooling fan 1.50 A1
Heater.50 A2
Heater.50 A3
Heater.50 A4
Four-wheel drive module.30 A9
Compressed natural gasmodule switch.30 A10
Anti-lock brake systempump.60 A12
Passenger power seat.30 A13
Anti-lock brake systemvalve.40 A14
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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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