engine FORD F450 SUPER DUTY 2016 Repair Manual

Your vehicle may tow a trailerprovided the maximum trailerweight is less than or equal to the
maximum trailer weight listed foryour vehicle configuration on thefollowing chart.
Pickup and box delete
MaximumGCWRRear axle ratioEngineVehicle
19000 lb (8618kg)3.73
6.2L gas
F-25022000 lb (9979kg)4.30
23500 lb (10659kg)3.31, 3.556.7L diesel
19000 lb (8618kg)3.73
6.2L gasF-350 singlerear wheel22000 lb (9979kg)4.30
23500 lb (10659kg)3.31, 3.556.7L diesel
19500 lb (8845kg)3.73
6.2L gas
F-350 dual rearwheel
22500 lb (10206kg)4.30
31900 lb (14470kg)3.73
6.7L diesel35000 lb (15875
kg)*4.30
40400 lb(18325 kg)4.306.7L dieselF-450
* Requires optional GCWR Package.
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Chassis cab
MaximumGCWRRear axle ratioEngineVehicle
19000 lb (8618kg)3.73
6.2L gasF-350 singlerear wheel22000 lb (9979kg)4.30
23500 lb (10659kg)3.736.7L diesel
19500 lb (8845kg)3.73
6.2L gasF-350 dual rearwheel22500 lb (10206kg)4.30
24500 lb (11113kg)3.73, 4.106.7L diesel
26000 lb (11793kg)4.886.8L gas
F-45026000 lb (11793kg)4.10
6.7L diesel30000 lb
(13608 kg)*4.30
26000 lb (11793kg)4.886.8L gas
F-550 (17500/18000 lbGVWR)
26000 lb (11793kg)4.10
6.7L diesel35000 lb (15875
kg)*4.30
26000 lb (11793kg)4.886.8L gasF-550 (19000/19500 lbGVWR)
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Chassis cab
MaximumGCWRRear axle ratioEngineVehicle
26000 lb (11793kg)
4.886.7L diesel35000 lb (15875
kg)*
* Requires optional GCWR Package.
Calculating the MaximumLoaded Trailer Weight for YourVehicle
1. Start with the gross combinedweight rating for your vehiclemodel and axle ratio. See theprevious chart.
2.Subtract all of the followingthat apply to your vehicle:
•Vehicle curb weight
•Hitch hardware weight, such asa draw bar, ball, locks or weightdistributing hardware
•Driver weight
•Passenger(s) weight
•Payload, cargo and luggageweight
•Aftermarket equipment weight.
This equals the maximum loadedtrailer weight for this combination.
Note:The trailer tongue load isconsidered part of the payload foryour vehicle. Reduce the totalpayload by the final trailer tongueweight.
Note:Consult an authorized dealerto determine the maximum trailerweight allowed for your vehicle ifyou are not sure.
ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•Do not tow a trailer until you drive yourvehicle at least 1000 miles (1600kilometers).
•Consult your local motor vehicle lawsfor towing a trailer.
•See the instructions included withtowing accessories for the properinstallation and adjustmentspecifications.
•Service your vehicle more frequently ifyou tow a trailer. See your scheduledmaintenance information.
•If you use a rental trailer, follow theinstructions the rental agency givesyou.
See Load limits in the Load Carryingchapter for load specification terms foundon the tire label and Safety Compliancelabel and instructions on calculating yourvehicle's load.
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If the message only displays with a trailerconnected, the problem is with the trailerwiring. Consult your trailer dealer forassistance. This can be a short to ground(such as a chaffed wire), short to voltage(such as a pulled pin on trailer emergencybreakaway battery) or the trailer brakesmay be drawing too much current.
Points to Remember
Note:Do not attempt removal of the trailerbrake controller without consulting theWorkshop Manual. Damage to the unit mayresult.
•Adjust gain setting before using thetrailer brake controller.
•Adjust gain setting, using the procedureabove, whenever road, weather, traileror vehicle loading conditions changefrom when the gain was initially set.
•Only use the manual control lever forproper adjustment of the gain duringtrailer setup. Misuse, such asapplication during trailer sway, couldcause instability of trailer or towvehicle.
•Avoid towing in adverse weatherconditions. The trailer brake controllerdoes not provide anti-lock control ofthe trailer wheels. Trailer wheels canlock up on slippery surfaces, resultingin reduced stability of trailer and towvehicle.
•The trailer brake controller is equippedwith a feature that reduces output atvehicle speeds below 11 mph (18 km/h)so trailer and vehicle braking is not jerkyor harsh. This feature is only activewhen applying the brakes using yourvehicle's brake pedal, not thecontroller.
•The controller interacts with the brakecontrol system and powertrain controlsystem of your vehicle to provide thebest performance on different roadconditions.
•Your vehicle's brake system and thetrailer brake system workindependently of each other. Changingthe gain setting on the controller doesnot affect the operation of yourvehicle's brakes.
•When you switch the engine off, thecontroller output is disabled and thedisplay and module shut down.
Trailer Lamps
WARNING
Never connect any trailer lamp wiringto the vehicle's tail lamp wiring; thismay damage the electrical systemresulting in fire. Contact your authorizeddealer as soon as possible for assistancein proper trailer tow wiring installation.Additional electrical equipment may berequired.
Trailer lamps are required on most towedvehicles. Make sure all running lights, brakelights, turn signals and hazard lights areworking.
Before Towing a Trailer
Practice turning, stopping and backing upto get the feel of your vehicle-trailercombination before starting on a trip.When turning, make wider turns so thetrailer wheels clear curbs and otherobstacles.
When Towing a Trailer
•Do not drive faster than 70 mph (113km/h) during the first 500 miles (800kilometers).
•Do not make full-throttle starts.
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•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 miles (80kilometers).
•When stopped in congested or heavytraffic during hot weather, place thegearshift in position P to aid engine andtransmission cooling and to help A/Cperformance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off automaticallywhen you are towing on long, steepgrades.
•Shift to a lower gear when driving downa long or steep hill. Do not apply thebrakes continuously, as they mayoverheat and become less effective.
•If your transmission is equipped with aGrade Assist or Tow/Haul feature, usethis feature when towing. This providesengine braking and helps eliminateexcessive transmission shifting foroptimum fuel economy andtransmission cooling.
•If your vehicle is equipped withAdvanceTrac with RSC, this systemmay turn on during typical corneringmaneuvers with a heavily loaded trailer.This is normal. Turning the corner at aslower speed while towing may reducethis tendency.
•If you are towing a trailer frequently inhot weather, hilly conditions, at thegross combined weight rating (or anycombination of these factors), considerrefilling your rear axle with syntheticgear lubricant (if the axle is not alreadyfilled with it). See Capacities andSpecifications (page 303).
•Allow more distance for stopping witha trailer attached. Anticipate stops andbrake gradually.
•Avoid parking on a grade. However, ifyou must park on a grade:
1. Turn the steering wheel to point yourvehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission inposition P.
4. Place wheel chocks in front and backof the trailer wheels. (Chocks notincluded with vehicle.)
Your vehicle may be equipped with atemporary or conventional spare tire. A"temporary" spare tire is different in size(diameter or width), tread-type(All-Season or All Terrain) or is from adifferent manufacturer than the road tireson your vehicle. Consult information on thetire label or Safety Compliance label forlimitations when using.
Launching or Retrieving a Boat orPersonal Watercraft (PWC)
Note:Disconnect the wiring to the trailerbefore backing the trailer into the water.
Note:Reconnect the wiring to the trailerafter you remove the trailer from the water.
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 inches (15 centimeters) abovethe bottom edge of the rear bumper.
Exceeding these limits may allow water toenter vehicle components:
•Causing internal damage to thecomponents.
•Affecting driveability, emissions, andreliability.
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BREAKING-IN
You need to break in new tires forapproximately 300 miles (480kilometers). During this time, your vehiclemay exhibit some unusual drivingcharacteristics.
Avoid driving too fast during the first 1000miles (1600 kilometers). Vary your speedfrequently and change up through thegears early. Do not labor the engine.
Do not tow during the first 1000 miles(1600 kilometers).
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.
•Combine errands and minimizestop-and-go driving.
•Close the windows for high-speeddriving.
•Drive at reasonable speeds (travelingat 55 mph [88 km/h] uses 15% lessfuel than traveling at 65 mph [105km/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.
•Revving the engine before turning it off.
•Idle for periods longer than one minute.
•Warm up your vehicle on coldmornings.
•Use the air conditioner or frontdefroster.
•Use the speed control in hilly terrain.
•Rest your foot on the brake pedal whiledriving.
•Drive a heavily loaded vehicle or tow atrailer.
•Carry unnecessary weight(approximately 1 mpg [0.4 km/L] islost for every 400 lb [180 kilogram] ofweight carried).
•Driving with the wheels out ofalignment.
Conditions
•Heavily loading a vehicle or towing atrailer may reduce fuel economy at anyspeed.
•Adding certain accessories to yourvehicle (for example bug deflectors,rollbars, light bars, running boards, skiracks or luggage racks) may reducefuel economy.
•To maximize the fuel economy, drivewith the tonneau cover installed (ifequipped).
•Using fuel blended with alcohol maylower fuel economy.
•Fuel economy may decrease with lowertemperatures during the first 8–10miles (12–16 kilometers) of driving.
•Driving on flat terrain offers improvedfuel economy as compared to drivingon hilly terrain.
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Driving Hints

•Transmissions give their best fueleconomy when operated in the topcruise gear and with steady pressureon the gas pedal.
•Four-wheel-drive operation (ifequipped) is less fuel efficient thantwo-wheel-drive operation.
•Close the windows for high-speeddriving.
DRIVING THROUGH WATER
WARNING
Do not drive through flowing or deepwater as you may lose control of yourvehicle.
Note:Driving through standing water cancause vehicle damage.
Note:Engine damage can occur if waterenters the air filter.
Before driving through standing water,check the depth. Never drive through waterthat is higher than the bottom of the wheelhubs.
When driving through standing water, drivevery slowly and do not stop your vehicle.Your brake performance and traction maybe limited. After driving through water andas soon as it is safe to do so:
•Lightly press the brake pedal to dry thebrakes and to check that they work.
•Check that the horn works.
•Check that the exterior lights work.
•Turn the steering wheel to check thatthe steering power assist works.
FLOOR MATS
WARNINGS
Always use floor mats that aredesigned to fit the foot well of yourvehicle. Only use floor mats thatleave the pedal area unobstructed. Onlyuse floor mats that are firmly secured toretention posts so that they cannot slip outof position and interfere with the pedalsor impair safe operation of your vehicle inother ways.
Pedals that cannot move freely cancause loss of vehicle control andincrease the risk of serious personalinjury.
Always make sure that the floormats are properly attached to theretention posts in the carpet that aresupplied with your vehicle. Floor mats mustbe properly secured to both retention poststo make sure mats do not shift out ofposition.
Never place floor mats or any othercovering in the vehicle foot well thatcannot be properly secured toprevent them from moving and interferingwith the pedals or the ability to control thevehicle.
Never place floor mats or any othercovering on top of already installedfloor mats. Floor mats should alwaysrest on top of vehicle carpeting surface andnot another floor mat or other covering.Additional floor mats or any other coveringwill reduce the pedal clearance andpotentially interfere with pedal operation.
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Driving HintsE176913

•The tire air pressures recommendedfor general driving are on the vehicle’sSafety Certification Label. Themaximum cold inflation pressure forthe tire and associated load rating ison the tire sidewall. Tire air pressuremay require re-adjustment within thesepressure limits to accommodate theadditional weight of the snowplowinstallation.
•Federal and some local regulationsrequire additional exterior lamps forsnowplow-equipped vehicles. Consultyour authorized dealer for additionalinformation.
Operating the Vehicle with theSnowplow Attached
Note:Do not use your vehicle for snowremoval until you have driven at least500 mi (800 km).
Ford recommends vehicle speed does notexceed 45 mph (72 km/h) whensnowplowing.
The attached snowplow blade restrictsairflow to the radiator, and may cause theengine to run at a higher temperature:Attention to engine temperature isespecially important when outsidetemperatures are above freezing. Anglethe blade to maximize airflow to theradiator and monitor engine temperatureto determine whether a left or right angleprovides the best performance.
Follow the severe duty schedule in yourScheduled Maintenance information forengine oil and transmission fluid changeintervals.
Snowplowing with your AirbagEquipped Vehicle
WARNINGS
Do not attempt to service, repair, ormodify the airbag supplementalrestraint system (SRS) or its fuses.Contact an authorized dealer.
Additional equipment such assnowplow equipment may affect theperformance of the airbag sensorsincreasing the risk of injury. Please refer tothe Body Builders Layout Book forinstructions about the appropriateinstallation of additional equipment.
All occupants of the vehicle,including the driver, should alwaysproperly wear their safety belts, evenwhen provided with an airbagsupplemental restraint system (SRS).
Your vehicle is equipped with a driver andpassenger airbag supplemental restraintsystem. The supplemental restraint systemwill activate in certain frontal and offsetfrontal collisions when the vehicle sustainssufficient frontal deceleration.
Careless or high speed driving whileplowing snow that results in sufficientvehicle decelerations can deploy theairbag. Such driving also increases the riskof accidents
Never remove or defeat the trippingmechanisms designed into the snowremoval equipment by its manufacturer.Doing so may cause damage to the vehicleand the snow removal equipment as wellas possible airbag deployment.
Engine temperature while plowing
When driving with a plow, your engine mayrun at a higher temperature than normalbecause the attached snowplow blade willrestrict airflow to the radiator.
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Driving Hints

•If you are driving more than 15 mi(24 km) at temperatures abovefreezing, angle the plow blade eitherfull left or full right to providemaximum airflow to the radiator.
•If you are driving less than 15 mi(24 km) at speeds up to 45 mph(72 km/h) in cold weather, you will notneed to worry about blade position toprovide maximum airflow.
Transmission operation whileplowing
WARNING
Do not spin the wheels at over34 mph (55 km/h). The tires may failand injure a passenger or bystander.
•Shift transfer case to 4L (4WD Low)when plowing in small areas at speedsbelow 5 mph (8 km/h).
•Shift transfer case to 4H (4WD High)when plowing larger areas or light snowat higher speeds. Do not exceed 15 mph(24 km/h).
•Do not shift the transmission from aforward gear to R (Reverse) until theengine is at idle and the wheels havestopped.
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Driving Hints

Canadian roadside coverage and benefitsmay differ from the U.S. coverage. If yourequire more information, please refer tothe coverage section of your warrantyguide, call us in Canada at1-800-665-2006, or visit our website atwww.ford.ca.
Sykes Assistance Services Corporationadministers the Roadside Assistanceprogram. You must receive coveredservices in Canada or the continentalUnited States. Coverage extends tovehicles that use public, non-seasonal,annually traveled roadways. RoadsideAssistance coverage does not extend tovehicles involved in cross-country driving,logging, autocross and any other form ofoff-road use. Well maintained roads andsurfaces help ensure safe travel for thesupplier, and allow their representativesto perform service as per the standardoperating procedures.
In Remote Locations
If our supplier cannot take your vehicle byroad to the nearest authorized dealership,transportation by rail or water may benecessary. The program covers a tow tothe dock or rail terminal and also to thedealership at the end of the trip.
For rail or water transportation, however,contact your authorized dealer to confirmif you are eligible for additional coveragebefore you authorize or pay for the service.
Call Ford Roadside Assistance at1-800-665-2006 for additionalinformation.
HAZARD WARNING FLASHERS
Note:The hazard warning flashers willoperate when the ignition is in any positionor if the key is not in the ignition. If usedwhen the engine is not running, the batterywill lose charge. As a result, there may beinsufficient power to restart your engine.
In some models, the hazardflasher control is located on theinstrument panel.
In other models, this feature is located onthe steering column, just behind thesteering wheel.
Use your hazard warning flashers whenyour vehicle is creating a safety hazard forother motorists.
•Press the flasher control and all frontand rear direction indicators flash.
•Press the flasher control again to turnthem off.
FUEL SHUTOFF
WARNING
Failure to inspect and, if necessary,repair fuel leaks after a collision mayincrease the risk of fire and seriousinjury. Ford Motor Company recommendsthat the fuel system be inspected by anauthorized dealer after any collision.
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Roadside EmergenciesE142663 E161463