engine FORD EXPEDITION EL 2017 Workshop Manual

PRINCIPLE OF OPERATION
The traction control system helps avoiddrive wheel spin and loss of traction.
If your vehicle begins to slide, the systemapplies the brakes to individual wheelsand, when needed, reduces engine powerat the same time. If the wheels spin whenaccelerating on slippery or loose surfaces,the system reduces engine power in orderto increase traction.
USING TRACTION CONTROL
WARNING
The stability and traction controllight illuminates steadily if thesystem detects a failure. Make sureyou did not manually disable the tractioncontrol system using the switch. If thestability control and traction control lightis still illuminating steadily, have thesystem serviced by an authorized dealerimmediately. Operating your vehicle withtraction control disabled could lead to anincreased risk of loss of vehicle control,vehicle rollover, personal injury and death.
The system automatically turns on eachtime you switch the ignition on.
If your vehicle is stuck in mud or snow,switching traction control off may bebeneficial as this allows the wheels to spin.
Note:When you switch traction control off,stability control remains fully active.
Switching the System Off
The switch for the stability and tractioncontrol system is on the instrument panel.
When you switch the system off, amessage and an illuminated icon appearon the instrument cluster.
Use the switch again to return the tractioncontrol system to normal operation.
Your vehicle may have MyKey restrictionsregarding this feature. See Principle ofOperation (page 47).
System Indicator Lights andMessages
The stability and traction controllight temporarily illuminates onengine start-up and flashes:
•When a driving condition activateseither of the systems.
•If a problem occurs in either of thesystems.
The stability and traction controloff light temporarily illuminateson engine start-up and stays on:
•When you switch the traction controlsystem off.
•When you select an alternative stabilitycontrol mode.
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Traction ControlE166706 E138639 E130458

PRINCIPLE OF OPERATION
WARNINGS
Vehicle modifications involvingbraking system, aftermarket roofracks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the electronic stabilitycontrol system. In addition, installing anystereo loudspeakers may interfere withand adversely affect the electronic stabilitycontrol system. Install any aftermarketstereo loudspeaker as far as possible fromthe front center console, the tunnel, andthe front seats in order to minimize the riskof interfering with the electronic stabilitycontrol sensors. Reducing theeffectiveness of the electronic stabilitycontrol system could lead to an increasedrisk of loss of vehicle control, vehiclerollover, personal injury and death.
Remember that even advancedtechnology cannot defy the laws ofphysics. It’s always possible to losecontrol of a vehicle due to inappropriatedriver input for the conditions. Aggressivedriving on any road condition can causeyou to lose control of your vehicleincreasing the risk of personal injury orproperty damage. Activation of theelectronic stability control system is anindication that at least some of the tireshave exceeded their ability to grip the road;this could reduce the operator’s ability tocontrol the vehicle potentially resulting ina loss of vehicle control, vehicle rollover,personal injury and death. If your electronicstability control system activates, SLOWDOWN.
The system automatically turns on eachtime you switch the ignition on.
If a fault occurs in either the stabilitycontrol or the traction control system, youmay experience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and tractioncontrol systems do not enhance yourvehicle's ability to maintain traction ofthe wheels.
If a driving condition activates either thestability control or the traction controlsystem you may experience the followingconditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
•A vibration in the brake pedal.
•The brake pedal is stiffer than usual.
•If the driving condition is severe andyour foot is not on the brake, the brakepedal may move as the system applieshigher brake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
Electronic Stability Control
The system enhances your vehicle’s abilityto prevent skids or lateral slides byapplying brakes to one or more of thewheels individually and, if necessary,reducing engine power.
Roll Stability Control
The system enhances your vehicle’s abilityto prevent rollovers by detecting yourvehicle’s roll motion and the rate at whichit changes by applying the brakes to oneor more wheels individually.
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Stability Control

Traction Control
The system enhances your vehicle’s abilityto maintain traction of the wheels bydetecting and controlling wheel spin. SeeUsing Traction Control (page 176).
Vehicle without stability controlskidding off its intended route.A
Vehicle with stability controlmaintaining control on a slipperysurface.
B
USING STABILITY CONTROL
Stability Control and TractionControl with Roll StabilityControl™ (RSC™)
The system automatically activates whenyou start your engine. You can switch offthe electronic stability control and rollstability control portions of the systembelow 35 mph (56 km/h). When thetransmission is in reverse (R), they aredisabled. You can switch off the tractioncontrol portion of the systemindependently. See Using TractionControl (page 176).
Stability Control and Traction Control with RSC Features
Tractioncontrol systemElectronicstabilitycontrol
Roll stabilitycontrolStabilitycontrol OFFlight
Button func-tions
EnabledEnabledEnabledIlluminatedduring bulbcheck
Default at start-up
Disabled 1Enabled1EnabledIlluminatedButton pressedmomentarily
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Stability ControlE72903A
AA
B
BB
B

Stability Control and Traction Control with RSC Features
Disabled 4DisabledDisabledFlashes thenilluminated
solid 2
Button pressedand held formore than 5seconds atvehicle speedunder 35 mph(56 km/h)
Disabled1Enabled1EnabledIlluminatedVehicle speedexceeds 35 mph(56 km/h) afterbutton ispressed andheld for morethan 5 seconds
EnabledEnabledEnabledNot illuminatedButton pressedagain afterdeactivation
Disabled 4DisabledDisabledIlluminatedButton notpressed and thetransfer case isswitched to
4WD Low3
1The traction control system may still be enabled but with higher entry thresholdscompared to the full system. The electronic stability control entry thresholds are highercompared to the full system.2When you press and hold the button for more than 5 seconds the indicator lamp blinksfor three seconds.3Your vehicle may or may not have this feature available. When you select 4WD low thestability control light illuminates and all stability control with RSC features are disabled.4Engine traction control and two-wheel spin brake traction control functions are disabled.Single wheel spin traction control is always enabled.
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Stability Control

BLIND SPOT INFORMATION
SYSTEM
WARNING
Never use the Blind SpotInformation System as areplacement for using the interiorand exterior mirrors or looking over yourshoulder before changing lanes. The BlindSpot Information System is not areplacement for careful driving.
The Blind Spot Information System isdesigned to aid you in detecting vehiclesthat may have entered the blind spot zone(A). The detection area is on both sides ofyour vehicle, extending rearward from theexterior mirrors to approximately 10 ft(3 m) beyond the bumper. The system isdesigned to alert you if certain vehiclesenter the blind spot zone while driving.
Cross Traffic Alert warns the driver ofvehicles approaching from the sides whenthe transmission is in reverse (R).
Note:The Blind Spot Information Systemdoes not prevent contact with other vehiclesor objects; nor detect parked vehicles,people, animals or infrastructure (fences,guardrails, trees). It’s only designed to alertyou to vehicles in the blind spot zones.
Note:When a vehicle passes quicklythrough the blind spot zone, typically fewerthan two seconds, the system does nottrigger.
Using the System
The Blind Spot Information System turnson when you start the engine and you driveyour vehicle forward above 3 mph(5 km/h). It remains on while thetransmission is in drive (D) or neutral (N).If shifted out of drive (D) or neutral (N),the system enters Cross Traffic Alert mode.Once shifted back into drive (D), the BlindSpot Information System turns back onwhen the vehicle is driven above 3 mph(5 km/h).
Note:The Blind Spot Information Systemdoes not function in reverse (R) or park (P)or provide any additional warning when aturn signal is on.
Cross Traffic Alert detects approachingvehicles from up to 46 ft (14 m) awaythough coverage decreases when thesensors are blocked. Reversing slowlyhelps increase the coverage area andeffectiveness.
WARNING
Never use the Cross Traffic Alertsystem as a replacement for usingthe interior and exterior mirrors andlooking over your shoulder before backingout of a parking space. Cross Traffic Alertis not a replacement for careful driving.
In this first example, the left sensor is onlypartially obstructed; zone coverage to theright is nearly maximized.
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Driving AidsA
A
E124788

DRIVE CONTROL
Driver Select Suspension (If Equipped)
Driver select suspension delivers a uniquedriving experience through a suite ofsophisticated electronic vehicle systems.These systems continuously monitor yourdriving inputs and the road conditions tooptimize ride comfort, steering andhandling.
Driver select suspension consists of thefollowing systems:
•Continuously controlled dampingdynamically adjusts the shockabsorbers stiffness in real time tomatch the road surface and driverinputs. This system continuouslymonitors your vehicle’s motion (roll,pitch, bounce), suspension position,load, speed, road conditions, andsteering to adjust the suspensiondamping for optimal vehicle control.
•Electronically power-assisted steeringadjusts steering effort and feel basedon your vehicle speed and your inputs.
The configuration remains active untilmodified from the main menu on theinformation display. See GeneralInformation (page 91).
Modes:
•Comfort – Provides a more relaxeddriving experience, maximizing comfort.Your steering effort decreases and thesuspension movement is more fluid.Comfort mode is ideal when you desireenhanced traveling comfort.
•Normal – Delivers a balancedcombination of comfortable, controlledride and confident handling. This modeprovides an engaging drive experienceand a direct connection to the roadwithout sacrificing any of thecomposure demanded from yourvehicle.
•Sport – Provides a sportier drivingexperience. The suspension stiffens,with an emphasis on handling andcontrol. The engine responds moredirectly to your inputs. Sport mode isideal for use during more spiriteddriving.
SELF-LEVELING SUSPENSION
The self-leveling suspension system isdesigned to improve ride, handling andgeneral vehicle performance during:
•Certain road conditions
•Steering maneuvers
•Braking
•Acceleration
•Towing
This system keeps the rear of your vehicleat a constant level through a hydraulicpump inside each rear shock. Dependingon the payload or road surface conditionsit will take approximately 2 mi (3.2 km) forthe leveling to complete.
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Driving Aids

Safety Compliance Certification LabelExample:
WARNING
Exceeding the SafetyCompliance Certificationlabel vehicle weight rating limitscould result in substandardvehicle handling or performance,engine, transmission and/orstructural damage, seriousdamage to the vehicle, loss ofcontrol and personal injury.
Maximum Loaded TrailerWeight
Maximum loaded trailer weight isthe highest possible weight of afully loaded trailer the vehicle cantow. Consult an authorized dealer(or the RV and Trailer TowingGuide available at an authorizeddealer) for more detailedinformation.
GCWR (Gross CombinedWeight Rating)
GCWR is the maximum allowableweight of the vehicle and theloaded trailer, including all cargoand passengers, that the vehiclecan handle without riskingdamage. (Important: The towing
vehicle’s braking system is ratedfor operation at Gross VehicleWeight Rating, not at GrossCombined Weight Rating.)Separate functional brakes shouldbe used for safe control of towedvehicles and for trailers where theGross Combined Weight of thetowing vehicle plus the trailerexceed the Gross Vehicle WeightRating of the towing vehicle.
The gross combined weight mustnever exceed the Gross CombinedWeight Rating.
Note: For trailer towinginformation refer to the RV andTrailer Towing Guide available atan authorized dealer.
WARNINGS
Do not exceed the GVWR orthe GAWR specified on theSafety Compliance Certificationlabel.
Do not use replacement tireswith lower load carryingcapacities than the original tiresbecause they may lower yourvehicle’s GVWR and GAWRlimitations. Replacement tireswith a higher limit than the originaltires do not increase the GVWRand GAWR limitations.
Exceeding any vehicle weightrating limitation could resultin serious damage to your vehicle,personal injury or both.
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Load CarryingE198828

TOWING A TRAILER
WARNING
Towing trailers beyond themaximum recommendedgross trailer weight exceeds thelimit of your vehicle and couldresult in engine damage,transmission damage, structuraldamage, loss of vehicle control,vehicle rollover and personalinjury.
Note:Do not exceed the GVWR orthe GAWR specified on thecertification label. SeeRecommended Towing Weights(page 204).
Your vehicle may have electricalitems, such as fuses or relays,related to towing. See Fuses(page 233).
Your vehicle's load capacitydesignation is by weight, not byvolume, so you cannot necessarilyuse all available space whenloading a vehicle or trailer.
Towing a trailer places an extraload on your vehicle's engine,transmission, axle, brakes, tiresand suspension. Inspect thesecomponents periodically during,and after, any towing operation.
Load Placement
To help minimize how trailermovement affects your vehiclewhen driving:
•Load the heaviest items closestto the trailer floor.
•Load the heaviest itemscentered between the left andright side trailer tires.
•Load the heaviest items abovethe trailer axles or just slightlyforward toward the trailertongue. Do not allow the finaltrailer tongue weight to goabove or below 10-15% of theloaded trailer weight.
•Select a ball mount with thecorrect rise or drop. When boththe loaded vehicle and trailerare connected, the trailer frameshould be level, or slightlyangled down toward yourvehicle, when viewed from theside.
When driving with a trailer orpayload, a slight takeoff vibrationor shudder may be present due tothe increased payload weight.Additional information regardingproper trailer loading and settingyour vehicle up for towing islocated in another chapter of thismanual. See Load Limit (page198).
You can also find information inthe RV & Trailer Towing Guideavailable at your authorizeddealer, or online.
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Towing

RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/Website
TRAILER SWAY CONTROL
WARNING
Turning off trailer sway controlincreases the risk of loss of vehiclecontrol, serious injury or death. Forddoes not recommend disabling this featureexcept in situations where speed reductionmay be detrimental (such as hill climbing),the driver has significant trailer towingexperience, and can control trailer swayand maintain safe operation.
Note:This feature does not prevent trailersway, but reduces it once it begins.
Note:This feature cannot stop all trailersfrom swaying.
Note:In some cases, if vehicle speed is toohigh, the system may activate multipletimes, gradually reducing vehicle speed.
This feature applies your vehicle brakes atindividual wheels and, if necessary, reducesengine power. If the trailer begins to sway,the stability control light flashes and themessage TRAILER SWAY REDUCESPEED appears in the information display.The first thing to do is slow your vehicledown, then pull safely to the side of theroad and check for proper tongue load andtrailer load distribution. See LoadCarrying (page 196).
RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailerweight for your vehicleconfiguration listed in the chartbelow.
Note:Make sure to take intoconsideration trailer frontal area.Do not exceed 36.5 feet² (3.39meters²) if your vehicle is equippedwith the standard towing package,or 60 feet² (5.57 meters²) if yourvehicle is equipped with theoptional heavy duty package.
Note:Exceeding this limitationmay significantly reduce theperformance of your towingvehicle. Selecting a trailer with alow aerodynamic drag and roundedfront design helps optimizeperformance and fuel economy.
Note:For high altitude operation,reduce the gross combined weightby 2% per 1000 feet (300 meters)starting at the 1000 foot (300meter) elevation point.
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Towing

Integrated Hitch Rating
WARNING
Towing trailers beyond the maximumtongue weight exceeds the limit ofthe towing system and could resultin vehicle structural damage, loss of vehiclecontrol and personal injury.
The standard integrated hitch has tworatings depending on mode of operation:
•Weight-carrying mode requires a drawbar and hitch ball. The draw barsupports all the vertical tongue load ofthe trailer.
•Weight-distributing mode requires anaftermarket weight-distributingsystem, which includes draw bar, hitchball, spring bars and snap-up brackets.This system distributes the verticaltongue load of the trailer between thetruck and the trailer.
Maximum Tongue WeightMaximum Trailer WeightMode
600 lb (272 kg)6000 lb (2721 kg)Weight carrying
920 lb (417 kg)9200 lb (4173 kg)Weight distributing
Note:These are hitch ratings only. Actualvehicle ratings are dependent on engine,transmission and axle combinations.
Weight-distributing Hitch - Vehicleswithout Automatic LevelingSuspension
WARNING
Do not adjust a weight-distributinghitch to any position where the rearbumper of the vehicle is higher thanit was before attaching the trailer. Doingso will defeat the function of theweight-distributing hitch, which may causeunpredictable handling, and could resultin serious personal injury.
When hooking-up a trailer using aweight-distributing hitch, always use thefollowing procedure:
1. Park the loaded vehicle, without thetrailer, on a level surface.
2. Measure the height to the top of yourvehicle's front wheel opening on thefender. This is H1.
3.Attach the loaded trailer to your vehiclewithout the weight-distributing barsconnected.
4. Measure the height to the top of yourvehicle's front wheel opening on thefender a second time. This is H2.
5. Install and adjust the tension in theweight-distributing bars so that theheight of your vehicle's front wheelopening on the fender is approximatelyhalf the way down from H2, toward H1.
6.Check that the trailer is level or slightlynose down toward your vehicle. If not,adjust the ball height accordingly andrepeat Steps 2-6.
When the trailer is level or slightly nosedown toward the vehicle:
•Lock the bar tension adjuster in place.
•Check that the trailer tongue securelyattaches and locks onto the hitch.
•Install safety chains, lighting, and trailerbrake controls as required by law or thetrailer manufacturer.
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Towing