wheel FORD E SERIES 2018 User Guide

LIMITED SLIP DIFFERENTIAL
(If Equipped)
This axle provides added traction onslippery surfaces, particularly when onewheel is on a poor traction surface. Undernormal conditions, the limited-slip axlefunctions like a standard rear axle. The axlemay exhibit a slight noise or vibrationduring tight turns with low vehicle speed.This is normal behavior and indicates theaxle is working.
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Rear Axle

GENERAL INFORMATION
Note:Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out and shouldbe inspected by an authorized dealer. If thevehicle has continuous vibration or shudderin the steering wheel while braking, thevehicle should be inspected by anauthorized dealer.
Note:Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the Wheels(page 163).
See the Instrument Clusterchapter for information on thebrake system warning light.
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow the vehicle and reduce engine power.If you experience this condition, apply thebrakes and bring your vehicle to a safestop. Turn the engine off, shift thetransmission into park (P), apply theparking brake, and then inspect theaccelerator pedal for any interferences. Ifnone are found and the condition persists,have your vehicle towed to the nearestauthorized dealer.
Hydraulic brake booster system(Hydroboost or Hydromax)
The Hydroboost and Hydromax systemsreceive fluid pressure from the powersteering pump to provide power assistduring braking.
The Hydromax booster receives backuppressure from the reserve system electricpump whenever the fluid in the powersteering system is not flowing. When theengine is off, the pump will turn on if thebrake pedal is applied, or if the ignition isturned to the on position.
The sound of the pump operating may beheard by the driver, but this is a normalcharacteristic of the system.
The reserve system provides reducedbraking power, so the vehicle should beoperated under these conditions withcaution, and only to seek service repair andremove the vehicle from the roadway.
Note:For Hydromax-equipped vehiclesoperating under normal conditions, the noiseof the fluid flowing through the booster maybe heard whenever the brake is applied. Thiscondition is normal. Vehicle service is notrequired.
If braking performance or pedal responsebecomes very poor, even when the pedalis strongly pressed, it may indicate thepresence of air in the hydraulic system orleakage of fluid. Stop the vehicle safely assoon as possible and seek serviceimmediately.
HINTS ON DRIVING WITH
ANTI-LOCK BRAKES
The anti-lock braking system does noteliminate the risks when:
•You drive too closely to the vehicle infront of you.
•Your vehicle is hydroplaning.
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BrakesE144522

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 traction control light illuminatessteadily if a failure is detected in thesystem. Verify that the tractioncontrol system was not manually disabledusing the switch. If the 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.
Switching the System Off
The switch for the tractioncontrol system is located on theinstrument panel.
When you switch the system off, anilluminated icon appears on the instrumentcluster.
Use the switch again to return the tractioncontrol system to normal operation.
System Indicator Lights andMessages
The traction control lighttemporarily illuminates onengine start-up and flasheswhen a driving condition activates thesystem.
The traction control off lighttemporarily illuminates onengine start-up and stays on:
•When you switch the traction controlsystem off.
•If a problem occurs in the system.
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Traction Control (If Equipped)E194301 E138639 E194301

PRINCIPLE OF OPERATION
Cruise control lets you maintain a setspeed without keeping your foot on theaccelerator pedal. You can use cruisecontrol when your vehicle speed is greaterthan 20 mph (30 km/h).
USING CRUISE CONTROL (If
Equipped)
WARNINGS
Do not use cruise control on windingroads, in heavy traffic or when theroad surface is slippery. This couldresult in loss of vehicle control, seriousinjury or death.
When you are going downhill, yourvehicle speed could increase abovethe set speed. The system does notapply the brakes.
To help the system to maintain the setspeed when going downhill, downshift toa lower gear.
The cruise controls are on the steeringwheel.
Switching Cruise Control On
Press ON.
The indicator appears in theinformation display.
Setting the Cruise Speed
1. Drive to your preferred speed.
2. Press SET ACCEL.
3. Take your foot off the acceleratorpedal.
Changing the Set Speed
•Press the accelerator or brake pedaluntil you reach your preferred speed.Press SET ACCEL.
•Press SET ACCEL to increase the setspeed in small increments.
•Press and hold SET ACCEL to increasethe set speed. Release the buttonwhen you reach your preferred speed.
•Press COAST to decrease the setspeed in small increments.
•Press and hold COAST to decrease theset speed. Release the control whenyou reach your preferred speed.
Note:If you accelerate by pressing only theaccelerator pedal, the set speed does notchange. When you release the acceleratorpedal, your vehicle returns to the speed thatyou previously set.
Canceling the Set Speed
Tap the brake pedal to cancel the setspeed.
Note:The system remembers the setspeed.
Resuming the Set Speed
Press RES.
Switching Cruise Control Off
Press OFF when the system is in standbymode, or switch the ignition off.
Note:You erase the set speed when youswitch the system off.
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Cruise Control (If Equipped)E161518 E71340

STEERING
To help prevent damage to the powersteering system:
•Never hold the steering wheel at itsfurthest turning points (until it stops)for more than three to five secondswhen the engine is running.
•Do not operate the vehicle with a lowpower steering pump fluid level (belowthe MIN mark on the reservoir).
•Some noise is normal during operation.If excessive, check for low powersteering pump fluid level beforeseeking service by your dealer.
•Heavy or uneven efforts may be causedby low power steering fluid. Check forlow power steering pump fluid levelbefore seeking service by your dealer.
•Do not fill the power steering pumpreservoir above the MAX mark on thereservoir, as this may result in leaksfrom the reservoir.
If the power steering system breaks down(or if the engine is turned off), you cansteer the vehicle manually, but it takesmore effort.
If the steering wanders or pulls, check for:
•an improperly inflated tire
•uneven tire wear
•loose or worn suspension components
•loose or worn steering components
•improper vehicle alignment
If any steering components are serviced orreplaced, install new fasteners (many arecoated with thread adhesive or haveprevailing torque features which may notbe re-used). Never re-use a bolt or nut.Torque fasteners to specifications.
A high crown in the road or high crosswindsmay also make the steering seem towander or pull.
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Driving Aids

TRAILER SWAY CONTROL (If
Equipped)
WARNING
Switching off trailer sway controlincreases the risk of loss of vehiclecontrol, serious injury or death. Wedo not recommend disabling this featureexcept in situations where speed reductionmay be detrimental, for exampleascending a grade, and the driver hassignificant trailer towing experience andcan control trailer sway to maintain safeoperation.
This feature applies your vehicle's brakesat individual wheels and, if necessary,reduces engine power. If the trailer beginsto sway, the stability control light flashesand a message appears in the informationdisplay.
ActionMessage
Slow your vehicle down,then pull safely to the sideof the road and check forcorrect tongue load andtrailer load distribution. SeeLoad Carrying (page 97).
TrailerswayReducespeed
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 turn on multiple timesto gradually reduce vehicle speed.
RECOMMENDED TOWING
WEIGHTS
Note:Make sure to take intoconsideration trailer frontal area.Vehicles equipped with the TrailerTow Package or the Heavy DutyPayload Package should notexceed 60 ft² (5.6 m²) trailerfrontal area.
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 1,000 ft (300 m)starting at the 1,000 ft (300 m)elevation point.
Note:Certain states requireelectric trailer brakes for trailersover a specified weight. Be sure tocheck state regulations for thisspecified weight. The maximumtrailer weights listed may be limitedto this specified weight, as yourvehicle's electrical system may notinclude the wiring connectorneeded to use electric trailerbrakes.
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Towing

E-350 Cutaway
MaximumGCWRRear AxleRatioWheelbaseRear AxleOptionEngine
13,000 lb(5,897 kg)
4.10138 in (3.5 m)Single RearWheel6.2L4.56
18,500 lb(8,391 kg)
4.10138 in (3.5 m)Single RearWheel6.8L4.56
13,000 lb(5,897 kg)4.10
138 in (3.5 m)Dual RearWheel6.2L17,000 lb(7,711 kg)4.56
18,500 lb(8,391 kg)
4.10138 in (3.5 m)Dual RearWheel6.8L4.56
13,000 lb(5,897 kg)
4.10158 in (4.01 m)Single RearWheel6.2L4.56
18,500 lb(8,391 kg)
4.10158 in (4.01 m)Single RearWheel6.8L4.56
13,000 lb(5,897 kg)4.10
158 in (4.01 m)Dual RearWheel6.2L17,000 lb(7,711 kg)4.56
18,500 lb(8,391 kg)
4.10158 in (4.01 m)Dual RearWheel6.8L4.56
13,000 lb(5,897 kg)4.10176 in (4.47 m)Dual RearWheel6.2L
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Towing

E-350 Cutaway
MaximumGCWRRear AxleRatioWheelbaseRear AxleOptionEngine
17,000 lb(7,711 kg)4.56
18,500 lb(8,391 kg)
4.10176 in (4.47 m)Dual RearWheel6.8L4.56
E-350 Stripped Chassis
MaximumGCWRRear AxleRatioWheelbaseLengthRear AxleOptionEngine
13,000 lb(5,897 kg)4.10
138 in (3.5 m)Dual RearWheel6.2L17,000 lb(7,711 kg)4.56
18,500 lb(8,391 kg)
4.10138 in (3.5 m)Dual RearWheel6.8L4.56
13,000 lb(5,897 kg)4.10
158 in (4.01 m)Dual RearWheel6.2L17,000 lb(7,711 kg)4.56
18,500 lb(8,391 kg)
4.10158 in (4.01 m)Dual RearWheel6.8L4.56
13,000 lb(5,897 kg)4.10
176 in (4.47 m)Dual RearWheel6.2L17,000 lb(7,711 kg)4.56
18,500 lb
(8,391 kg)
4.10176 in (4.47 m)Dual Rear
Wheel6.8L4.56
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Towing

E-450 Cutaway
MaximumGCWRRear AxleRatioWheelbaseLengthRear AxleOptionEngine
18,000 lb(8,165 kg)4.56158 in (4.01 m)Dual RearWheel6.2L
22,000 lb(9,979 kg)4.56158 in (4.01 m)Dual RearWheel6.8L
18,000 lb(8,165 kg)4.56176 in (4.47 m)Dual RearWheel6.2L
22,000 lb(9,979 kg)4.56176 in (4.47 m)Dual RearWheel6.8L
E-450 Stripped Chassis
MaximumGCWRRear AxleRatioWheelbaseLengthRear AxleOptionEngine
18,000 lb(8,165 kg)4.56158 in (4.01 m)Dual RearWheel6.2L
22,000 lb(9,979 kg)4.56158 in (4.01 m)Dual RearWheel6.8L
18,000 lb(8,165 kg)4.56176 in (4.47 m)Dual RearWheel6.2L
22,000 lb(9,979 kg)4.56176 in (4.47 m)Dual RearWheel6.8L
Calculating the MaximumLoaded Trailer Weight for YourVehicle
1. Start with the gross combinedweight rating for your vehicle
model and axle ratio. See theprevious charts.
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.
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Towing

Hitches
Do not use a hitch that either clamps ontothe bumper or attaches to the axle. Youmust distribute the load in your trailer sothat 10-15% of the total weight of thetrailer is on the tongue.
Weight-distributing Hitches
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.
Safety Chains
Note:Do not attach safety chains to thebumper.
Always connect the safety chains to theframe or hook retainers of your vehiclehitch.
To connect the safety chains, cross thechains under the trailer tongue and allowenough slack for turning tight corners. Donot allow the chains to drag on the ground.
Trailer Brakes
WARNING
Do not connect a trailer's hydraulicbrake system directly to yourvehicle's brake system. Your vehiclemay not have enough braking power andyour chances of having a collision greatlyincrease.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if youinstall them properly and adjust them tothe manufacturer's specifications. Thetrailer brakes must meet local and federalregulations.
The rating for the tow vehicle's brakingsystem operation is at the gross vehicleweight rating, not the gross combinedweight rating.
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