2024 FORD F650/750 radiator

•The gearshift lever must be in P (Park)or N (Neutral) in order for the starterto operate.
•Try operating the starter switch severaltimes. This operation may cleanpotentially corroded contacts or makethe switch temporarily operable untilyou can reach the dealer.
•If all electrical connections are tightand you need assistance to start, SeeJump Starting the Vehicle (page 190).
If engine cranks but won’t start
Prolonged starter cranking (in excess of 10seconds) could cause damage to thestarter motor or the high-pressure fuelpump.
•Check the fuel gauge. You may be outof fuel. If the gauge shows that thereis fuel in the tank, the trouble may bein the electrical system or the fuelsystem. If equipped with an auxiliarytank, be sure that the tank controlswitch is set for the tank with fuel andnot on an empty tank.
•Leaving your ignition key turned to onfor over two minutes without startingmay make starting difficult becausethe glow plugs will cease activation.Reset the system by turning the ignitionkey to off and then back to on again.
Note:If the system is out of fuel and theengine will not start, do not continuecranking the engine. Continued cranking candamage the high-pressure fuel pump.
If the engine runs hot
The following could cause the engine tooverheat:
•Lack of coolant
•Dirty cooling system.
•Plugged radiator fins, A/C condenserand/or oil cooler
•Malfunctioning fan drive
•Driving with frozen coolant
•Sticking thermostat
•Overloading or pulling heavy trailersduring 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 andcircuit breakers must always be thesame rating as the original equipmentshown. Never replace a fuse or circuitbreaker with one of a higher rating.Higher rated fuses or circuit breakerscould allow circuit overloading in theevent of a circuit malfunction, resultingin severe vehicle damage or personalinjury due to fire.
Burned-out or blown fuses usually indicatean electrical short-circuit, although a fusemay occasionally burn out from vibration.Insert a second fuse. If this fuseimmediately burns out and you cannotlocate the cause, return your vehicle toyour dealer for a circuit check. SeeChanging a Fuse (page 211).
Selective catalytic reduction systemspeed limit and Idle-only modes
If the vehicle’s speed is limited or in anidle-only mode, the selective catalyticreduction system may be limiting thevehicle’s functions due to low orcontaminated DEF. Check the DEF. SeeSelective Catalytic Reductant System(page 120).
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingIntroduction

PROTECTING THE
ENVIRONMENT
Sustainability is a priority at Ford. We areconstantly looking for ways to reduce ourimpact on the planet while providingcustomers with great products anddelivering a strong business. You shouldplay your part in protecting theenvironment. Correct vehicle usage andthe authorized disposal of waste, cleaningand lubrication materials are significantsteps toward this aim.
For additional information about oursustainability progress and initiatives, visitwww.sustainability.ford.com.
NOISE POLLUTION CONTROL
In order to keep to the federal exteriornoise regulations, your vehicle may beequipped with noise emission items.Depending on your vehicle configuration,it may have all or some of the followingitems:
Air Intake System
Inspect the air cleaner. Do not alter itslocation. Do not alter inlet and outletpiping.
Body
Inspect wheel well splash shields, cabshields and under hood insulation fordeterioration, dislocation and orientation.
Cooling System
•Inspect the fan for blade damage. Ifyou find any damage, replace with therecommended parts. Inspect forfan-to-shroud interference and anydamage to shroud, such as cracks andholes.
•Do not change fan ratio or alter fanspacer dimensions and positions.
•Inspect fan clutch for proper operation.Make sure the fan is disengaged whencooling of the engine is not required.
•Inspect radiator shutters (if equipped)for proper operation. The shuttersshould be open during normaloperating temperatures.
Engine
Valve covers and block covers damp-outengine mechanical noise. If they needreplacing, make sure to replace them withthe recommended parts. Check formechanical isolations.
Transmission Enclosure
Inspect for cracks, holes and tears. Cleanany deposits, such as oil, dirt and stones.
Exhaust System
•Inspect for leaks at various jointconnections and loose clamps.
•Perform a visual inspection for cracksor holes in the muffler and tail pipe.
•Always use the recommendedreplacement parts.
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9.Start your vehicle.
Perform Steps 4 through 8 in reverse order,making sure to engage the hinge pivotsbetween the upper and lower halves of theshroud. Keep slight pressure in the forwarddirection as you rotate the halves together.
If Your Vehicle Gets Stuck in Mudor Snow
Note:Do not rock your vehicle if the engineis not at normal operating temperature ordamage to the transmission could occur.
Note:Do not rock your vehicle for morethan a minute or damage to thetransmission and tires could occur, or theengine could overheat.
If your vehicle is stuck in mud or snow, youcould rock it out by shifting betweenforward and reverse gears, stoppingbetween shifts in a steady pattern. Presslightly on the accelerator in each gear.
POWER TAKE-OFF (IF EQUIPPED)
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 the
vehicle is stationary or mobile. In thestationary condition, there is limitedcooling air flow through the radiator andaround the vehicle that normally occurswhen a vehicle is moving. The aftermarketPTO system installer, having the mostknowledge of the final application, isresponsible for determining whetheradditional chassis heat protection orpowertrain cooling is required and alertingthe user to the safe and proper operation.
Your vehicle is approved for use as aStationary Mode, SplitShaft Mode orMobile Mode power source within the limitsand operating guidelines detailed in theFord Truck Body Builders Layout Book,found at https://fordbbas.com/home andthrough the Ford Truck Body BuildersAdvisory Service. The transmission powersource modes are engine specific.
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ECONOMICAL DRIVING
Your fuel economy is affected by severalthings, such as how you drive, theconditions you drive under, and how youmaintain your vehicle.
You may improve your fuel economy bykeeping these things in mind:
•Accelerate and slow down in a smooth,moderate fashion.
•Drive at steady speeds withoutstopping.
•Anticipate stops; slowing down mayeliminate the need to stop.
•Close the windows for high-speeddriving.
•Drive at reasonable speeds. Travelingat 55 mph (90 km/h) uses 15% lessfuel than traveling at 65 mph(105 km/h).
•Keep the tires properly inflated and useonly the recommended size.
•Use the recommended engine oil.
•Perform all regularly scheduledmaintenance.
Avoid these actions; they reduce your fueleconomy:
•Sudden accelerations or hardaccelerations.
•Warm up your vehicle on coldmornings.
•Use the air conditioner.
•Use the speed control in hilly terrain.
•Rest your foot on the brake pedal whiledriving.
•Carry unnecessary weight.Approximately 1 mpg [0.4 km/L] is lostfor every 400 lb (180 kg) of weightcarried.
•Driving with the wheels out ofalignment.
Conditions
•Adding certain accessories to yourvehicle may reduce fuel economy. Forexample bug deflectors, rollbars, lightbars, running boards, ski racks orluggage racks.
•Using fuel blended with alcohol maylower fuel economy.
•Fuel economy may decrease with lowertemperatures during the first 5–10 mi(12–16 km) of driving.
•Driving on flat terrain offers improvedfuel economy as compared to drivingon hilly terrain.
•Transmissions give their best fueleconomy when operated in the topcruise gear and with steady pressureon the gas pedal.
COLD WEATHER
PRECAUTIONS - 6.7L DIESEL
Winter Grille Cover (If Equipped)
The winter grille cover enhances heaterperformance and will reduce the amountof time it takes to warm the inside of yourvehicle in extremely cold conditions below-0.4°F (-18°C).
The winter grille cover installs over theoutside of the front grille and restricts theair flowing to the engine compartment bycovering the radiator grille openings.
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Note:The grille cover must be installed inextremely cold conditions below 10.4°F(-12°C) to prevent possible engine damage.
Usage Guidelines
The winter grille cover should only be usedwhile operating your vehicle in extremelycold temperatures or in heavy snow forextended periods of time. In thesetemperatures, the vehicle does not needa large amount of air to properly cool theengine. During periods of operation whenmore airflow is required to cool the vehicle,the winter grille cover should not be used.
The following usage guidelines will allowadequate airflow for proper radiator andair cooler performance:
•Do not use the cover whentemperatures are above 50.0°F (10°C).Use of the cover in these conditionscould cause your vehicle to overheat.Remove the cover if the vehicleoverheats.
•Do not use the cover above 32.0°F(0°C) if towing a trailer. Your vehiclemay overheat if the cover is used whiletowing a trailer.
•Do not modify the cover.
Installation Instructions
Installation and removal instructions areincluded in the winter grille cover package.Refer to the usage guidelines tounderstand when to use the cover.
The cover will seem undersized during thefirst installation, which is normal. The coverstretches during installation to ensure atight fit. The first installation is bestperformed when the grille cover is warm.
COLD WEATHER
PRECAUTIONS - 7.3L
The functional operation of somecomponents and systems can be affectedat temperatures below approximately-13°F (-25°C).
BREAKING-IN
You need to break in new tires forapproximately 300 mi (480 km). Duringthis time, your vehicle may exhibit someunusual driving characteristics.
Avoid driving too fast during the first1,000 mi (1,600 km). Vary your speedfrequently and change up through thegears early. Do not labor the engine.
Drive your new vehicle at least 1,000 mi(1,600 km) before towing a trailer. Makesure you use the specified engine oil. SeeEngine Oil Capacity and Specification(page 296).
Do not add friction modifier compoundsor special break-in oils during the first fewthousand miles (kilometers) of operation.These additives may prevent piston ringseating.
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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.
It is very important to use predilutedcoolant approved to the correctspecification to avoid plugging the smallpassageways in the engine cooling system.See Cooling System Capacity andSpecification (page 301). 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: Coolants marketed for all makes andmodels may not be approved to Fordspecifications 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.
For vehicles with overflow coolant systemswith a non-pressurized cap on the coolantrecovery system, add coolant to thecoolant recovery reservoir when the engineis cool. Add prediluted coolant to themaximum level. For all vehicles which havea coolant degas system with a pressurizedcap, or if it is necessary to remove thecoolant pressure relief cap on the radiator,follow these steps to add engine coolant:
1.Turn the engine off and let it cool.
2.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
3.Fill the coolant reservoir slowly withprediluted engine coolant to within theminimum and maximum range on theengine coolant reservoir. If youremoved the radiator cap in anoverflow system, fill the radiator until
the coolant is visible and the radiatoris almost full. If coolant is added tobring the level within the minimum andmaximum range when the engine is notcold, the system may remain underfilled.
4.Replace the coolant reservoir cap, turnit clockwise until you feel a strongresistance.
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 proper level.
Note:If prediluted coolant is not available,use the approved antifreeze concentratediluting it to 50/50 with distilled water. SeeCooling System Capacity andSpecification (page 301). Using water thathas not been deionized may contribute todeposit formation, corrosion or plugging ofthe small cooling system passageways.
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.
Note:During normal vehicle operation, thecoolant may change color from orange topink or light red. As long as the coolant isclear and uncontaminated, this color changedoes not indicate the coolant has degradednor does it require the coolant to be drained,the system to be flushed, or the coolant tobe replaced.
In case of emergency, you can add a largeamount of water without predilutedcoolant to reach a vehicle service location.On arrival do the following:
1.Drain the cooling system.
2.Chemically clean the cooling system.We recommend Motorcraft PremiumCooling System Flush.
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3.Refill with prediluted coolant as soonas possible.
Water alone, without prediluted coolant,can cause 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 non-specifiedadditives to the coolant. These can beharmful and compromise the corrosionprotection of the coolant.
Engine and Secondary CoolingSystem Refill Procedure
Use the following procedure when refillingthe engine or secondary cooling systemsafter it has been drained or becomeextremely low:
1.Before you remove the cap, turn theengine off and let it cool.
2.When the engine is cool, wrap a thickcloth around the cap. Slowly turn thecap counterclockwise until pressurebegins to release.
3.Step back when the pressure releases.
4.When you are sure that all the pressurehas been released, use the cloth to turnthe cap counterclockwise and thenremove it.
5.Slowly add prediluted engine coolantto the coolant reservoir until thecoolant level is within the minimumand maximum range as listed on thereservoir.
6.Reinstall the pressure relief cap.
7.Start and run the engine at 2000 rpmfor 2 minutes.
8.Switch the engine off and remove thepressure relief cap as previouslyoutlined.
9.If required, add prediluted enginecoolant to the coolant reservoir untilthe coolant level is within the minimumand maximum range as listed on thereservoir.
10.Engine cooling system: Repeat steps5 through 9 until the coolant level hasstabilized (is no longer dropping aftereach step) and the upper radiatorhose at the radiator is warm to thetouch (indicating that the enginethermostat is open and coolant isflowing through the radiator).
11.Check the secondary cooling system.Repeat steps 1 through 10 until thecoolant level has stabilized (is nolonger dropping after each step) andthe lower passenger side of thesecondary radiator is warm to thetouch (indicating secondarythermostat is open and coolant isflowing through the entire system).
12.Check the coolant level in bothsystems before you drive your vehiclethe next few times.
13.If necessary, add prediluted enginecoolant to the coolant reservoirs untilthe coolant level is within theminimum and maximum range aslisted on the reservoir. After anycoolant has been added, check thecoolant concentration.
Recycled Coolant
We do not recommend the use of recycledcoolant as an approved recycling processis not yet available.
Dispose of used engine coolant in anappropriate manner.
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For vehicles with overflow coolant systemswith a non-pressurized cap on the coolantrecovery system, add coolant to thecoolant recovery reservoir when the engineis cool. Add prediluted coolant to themaximum level. For all vehicles which havea coolant degas system with a pressurizedcap, or if it is necessary to remove thecoolant pressure relief cap on the radiator,follow these steps to add engine coolant:
1.Turn the engine off and let it cool.
2.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
3.Fill the coolant reservoir slowly withprediluted engine coolant to within theminimum and maximum range on theengine coolant reservoir. If youremoved the radiator cap in anoverflow system, fill the radiator untilthe coolant is visible and the radiatoris almost full. If coolant is added tobring the level within the minimum andmaximum range when the engine is notcold, the system may remainunderfilled.
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 proper level.
Note:If prediluted coolant is not available,use the approved antifreeze concentratediluting it to 50/50 with distilled water. SeeCooling System Capacity andSpecification (page 302). Using water thathas not been deionized may contribute todeposit formation, corrosion or plugging ofthe small cooling system passageways.
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.
Note:During normal vehicle operation, thecoolant may change color from orange topink or light red. As long as the coolant isclear and uncontaminated, this color changedoes not indicate the coolant has degradednor does it require the coolant to be drained,the system to be flushed, or the coolant tobe replaced.
Note:In case of emergency, you can add alarge amount of water without coolant inorder to reach a vehicle service location.Water alone, without coolant, can causeengine damage from corrosion, overheatingor freezing. When you reach a servicelocation, you must have the cooling systemdrained, flushed and refilled using thecorrect specification prediluted coolant orantifreeze concentrate. See CoolingSystem Capacity and Specification (page302).
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.
Recycled Coolant
We do not recommend the use of recycledcoolant as an approved recycling processis not yet available.
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingMaintenance