engine FORD EXPLORER 2023 Repair Manual

ActionMessage
Your vehicle has a sealedfuel system that may beunder pressure. This inform-ation message appearswhile the fuel system isdepressurizing with the fuelfiller door closed. Wait forthe fuel system to depres-surize and for the fuel fillerdoor to unlatch.
Pleasewait forfuel doorto open
This information messageappears when the fuelsystem depressurizes andthe fuel filler door opens.Fully open the fuel filler doorto refuel and fully close thefuel filler door whenrefueling is complete.
Fuel DoorOpen
Your vehicle has a sealedfuel system that requires thefuel filler door to be fullyclosed after refueling. Thiswarning message appearswhen the fuel filler door isajar. Please fully close thefuel filler door to avoid a"Check Engine" Light.
Fuel doorajar Closefully toavoid""CheckEngine""light
ActionMessage
If you see this message anda "Check Engine" lamp illu-minates, please fully closethe fuel filler door. The"Check Engine" Light shouldclear within five seconds. Ifthe "Check Engine" lightpersists, please see yourdealer.
A warning message appearsin the information displaywhen the fuel system failsto depressurize or the fuelfiller door fails to open. Youmay have to use the fuelfiller door manual overridelever.
RefuelError SeeManual
If the Refuel Error information messageappears, do the following:
1.Check the fuel filler door for anythingthat may be obstructing its movement,for example ice or snow.
2.Remove any obstruction from the fuelfiller door.
3.Press the button on the left side of theinstrument panel to open the fuel fillerdoor.
4.If the fuel filler door fails to open andthe Refuel Error message remains inthe information display, use the fuelfiller door manual override lever.
Fuel Filler Door Manual OverrideLever
WARNING: The fuel system maybe under pressure. If you hear a hissingsound near the fuel filler inlet, do notrefuel until the sound stops. Otherwise,fuel may spray out, which could causeserious personal injury.
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EMISSION LAW
WARNING: Do not remove or alterthe original equipment floor covering orinsulation between it and the metal floorof the vehicle. The floor covering andinsulation protect occupants of thevehicle from the engine and exhaustsystem heat and noise. On vehicles withno original equipment floor coveringinsulation, do not carry passengers in amanner that permits prolonged skincontact with the metal floor. Failure tofollow these instructions may result infire or personal injury.
U.S. federal laws and certain state lawsprohibit removing or rendering inoperativeemission control system components.Similar federal or provincial laws mayapply in Canada. We do not approve of anyvehicle modification without firstdetermining applicable laws.
Tampering with emissionscontrol systems includingrelated sensors or the DieselExhaust Fluid system can result in reducedengine power and the illumination of theservice engine soon light.
Tampering With a Noise ControlSystem
Federal laws prohibit the following acts:
•Removal or rendering inoperative byany person other than for purposes ofmaintenance.
•Repair or replacement of any device orelement of the design incorporated intoa new vehicle for the purpose of noisecontrol prior to its sale or delivery tothe ultimate purchaser or while it is inuse.
•The use of the vehicle after any personremoves or renders inoperative anydevice or element of the design.
The U.S. Environmental Protection Agencymay presume to constitute tampering asfollows:
•Removal of hood blanket, fender apronabsorbers, fender apron barriers,underbody noise shields or acousticallyabsorptive material.
•Tampering or rendering inoperative theengine speed governor, to allow enginespeed to exceed manufacturerspecifications.
If the engine does not start, runs rough,experiences a decrease in engineperformance, experiences excess fuelconsumption or produces excessiveexhaust smoke, check for the following:
•A plugged or disconnected air inletsystem hose.
•A plugged engine air filter element.
•Water in the fuel filter and waterseparator.
•A clogged fuel filter.
•Contaminated fuel.
•Air in the fuel system, due to looseconnections.
•An open or pinched sensor hose.
•Incorrect engine oil level.
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•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity forclimactic conditions.
Note:Some vehicles have a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
Note:If these checks do not help youcorrect the concern, have your vehiclechecked as soon as possible.
Noise Emissions Warranty,Prohibited Tampering Acts andMaintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb(4,536 kg) Gross Vehicle Weight Rating(GVWR). The preceding statementsconcerning prohibited tampering acts andmaintenance, and the noise warrantyfound in the Warranty Guide, areapplicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNING: Do not park, idle ordrive your vehicle on dry grass or otherdry ground cover. The emission systemheats up the engine compartment andexhaust system, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a shortperiod of engine operation and stays hotafter the engine is switched off.
WARNING: Exhaust leaks mayresult in entry of harmful and potentiallylethal fumes into the passengercompartment. If you smell exhaustfumes inside your vehicle, have yourvehicle inspected immediately. Do notdrive if you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicableexhaust emission standards.
To make sure that the catalytic converterand other emission control componentscontinue to work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 293).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
The scheduled maintenance items listedin scheduled maintenance information areessential to the life and performance ofyour vehicle and to its emissions system.
If you use anything other than Ford,Motorcraft or Ford-authorized parts formaintenance replacements or for serviceof components affecting emission control,such non-Ford parts should be equivalentto genuine Ford Motor Company parts inperformance and durability.
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Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damagedexhaust system may allow exhaust toenter the vehicle. Have a damaged orimproperly operating exhaust systeminspected and repaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehiclesare not permitted to intentionally removean emission control device or prevent itfrom working. Information about yourvehicle’s emission system is on the VehicleEmission Control Information Decallocated on or near the engine. This decalalso lists engine displacement.
Please consult your warranty informationfor complete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects theenvironment by making sure that yourvehicle continues to meet governmentemission standards. The OBD-II systemalso assists a service technician in properlyservicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected amalfunction. Temporary malfunctions maycause the service engine soon indicator toilluminate. Examples are:
1.Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in thefuel—the engine may misfire or runpoorly.
3.The fuel fill inlet may not have closedproperly. See Refueling (page 185).
4.Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank withgood quality fuel, properly closing the fuelfill inlet or letting the electrical system dryout. After three driving cycles without theseor any other temporary malfunctionspresent, the service engine soon indicatorshould stay off the next time you start theengine. A driving cycle consists of a coldengine startup followed by mixed city andhighway driving. No additional vehicleservice is required.
If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II maynot have symptoms that are apparent,continued driving with the service enginesoon indicator on can result in increasedemissions, lower fuel economy, reducedengine and transmission smoothness andlead to more costly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programsto inspect the emission control equipmenton your vehicle. Failure to pass thisinspection could prevent you from gettinga vehicle registration.
If the service engine soonindicator is on or the bulb doesnot work, your vehicle may needservice. See On-Board Diagnostics.
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Your vehicle may not pass the I/M test ifthe service engine soon indicator is on ornot working properly (bulb is burned out),or if the OBD-II system has determinedthat some of the emission control systemshave not been properly checked. In thiscase, the vehicle is not ready for I/Mtesting.
If the vehicle’s engine or transmission hasjust been serviced, or the battery hasrecently run down or been replaced, theOBD-II system may indicate that thevehicle is not ready for I/M testing. Todetermine if the vehicle is ready for I/Mtesting, turn the ignition key to the onposition for 15 seconds without crankingthe engine. If the service engine soonindicator blinks eight times, it means thatthe vehicle is not ready for I/M testing; ifthe service engine soon indicator stays onsolid, it means that your vehicle is readyfor I/M testing.
The OBD-II system checks the emissioncontrol system during normal driving. Acomplete check may take several days.
If the vehicle is not ready for I/M testing,you can perform the following driving cycleconsisting of mixed city and highwaydriving:
1.15 minutes of steady driving on anexpressway or highway followed by 20minutes of stop-and-go driving with atleast four 30-second idle periods.
2.Allow your vehicle to sit for at leasteight hours with the ignition off. Then,start the vehicle and complete theabove driving cycle. The vehicle mustwarm up to its normal operatingtemperature. Once started, do not turnoff the vehicle until the above drivingcycle is complete.
If the vehicle is still not ready for I/Mtesting, you need to repeat the abovedriving cycle.
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GENERAL INFORMATION -
HYBRID ELECTRIC VEHICLE
(HEV)
WARNING: This battery packshould only be serviced by an authorizedelectric vehicle technician. Improperhandling can result in personal injury ordeath.
WARNING: Apply the parkingbrake, shift into park (P), switch theignition off and remove the key beforeyou open the hood or have any serviceor repair work completed. If you do notswitch the ignition off, the engine couldrestart at any time. Failure to follow thisinstruction could result in personal injuryor death.
WARNING: Do not touch theelectronic ignition system parts after youhave switched the ignition on or whenthe engine is running. The systemoperates at high voltage. Failure tofollow this instruction could result inserious personal injury or death.
WARNING: Keep your hands andclothing clear of the engine cooling fan.
Your vehicle consists of varioushigh-voltage components and wiring. Allof the high-voltage power flows throughspecific wiring assemblies labeled as suchor covered with a solid orange convolute,or orange striped tape, or both. Do notcome in contact with these components.
The high-voltage battery system is ahigh-voltage, lithium-ion battery system.The pack is located underneath the vehicle.The high voltage battery system uses anadvanced active liquid heating and coolingsystem to regulate high voltage batterytemperature and help maximize the life ofthe high voltage battery.
Note:The high-voltage battery does notrequire regular service maintenance.
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The electric parking brake could applywhen you shift to park (P) without thebrake pedal fully pressed. The electricparking brake applies when you shift topark (P) on large slopes. The electricparking brake releases with the drive awayrelease function or manually. See ElectricParking Brake (page 211).
Note:A warning tone sounds if you openthe driver door and you have not shifted thetransmission selector to park (P).
Automatic Return to Park
What is Automatic Return to Park (P)
Your vehicle shifts in park (P) if youattempt to exit your vehicle without thetransmission in park (P).
How Does Automatic Return to Park (P)Work
Your vehicle shifts into park (P) when yourvehicle is stationary and any of thefollowing occur:
•You switch the vehicle off.
•You open the driver door with yourseatbelt unlatched.
•You unlatch the driver seatbelt whenthe driver door is open.
Note:Do not use automatic return to park(P) when your vehicle is moving, except inan emergency. See Starting and Stoppingthe Engine (page 168).
Automatic Return to Park (P) Limitations
Automatic return to park (P) may not workif the door ajar switch is malfunctioning.
Have the system checked immediately ifany of the following occur:
•Door ajar indicator does not illuminatewith the driver door open.
•Door ajar indicator illuminates with thedriver door closed.
•Transmission not in park messageappears with the driver door closed,after you shift out of park (P).
Reverse (R)
With the transmission selector in reverse(R), your vehicle moves backward. Alwayscome to a complete stop before shiftinginto and out of reverse (R).
Neutral (N)
With the transmission selector in neutral(N), you can start your vehicle and it is freeto roll. Hold the brake pedal down when inthis position.
Temporary Neutral Mode
What is Temporary Neutral Mode
This mode keeps your vehicle in neutral(N) when you switch your vehicle off. Usethis mode at an automatic car wash if youexit your vehicle or switch your vehicle off.
Note:Do not tow your vehicle in this mode.
Note:Automatic return to park (P) delayswhen your vehicle is in this mode.
Temporary Neutral Mode Limitations
Your vehicle may shift to park (P) after 30minutes, or when the vehicle batterycharge level is low. Prolonged use of thismode can cause the vehicle battery to runout of charge.
Do not tow your vehicle in this mode.Failure to follow these instructions couldresult in vehicle damage not covered bythe vehicle warranty.
Entering Temporary Neutral Mode
1.Switch your vehicle on.
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2.Bring your vehicle to a complete stop.
3.Press and hold the brake pedal.
4.Shift into neutral (N).
Note:A instructional message appears.
5.Press the manual (M), or low (L)button.
Note:A confirmation message appearswhen your vehicle enters the mode.
6.Release the brake pedal.
Note:Your vehicle is free to roll.
7.Switch your vehicle off.
Note:Do not tow your vehicle in this mode.
Note:The neutral (N) indicator on thetransmission selector may flash in thismode.
Exiting Temporary Neutral Mode
1.Press the brake pedal.
2.Shift into park (P), or switch yourvehicle on and shift into drive (D), orreverse (R).
Drive (D)
Drive (D) is the normal driving position forthe best fuel economy and smoothness.Shift the transmission selector to drive (D)to allow your vehicle to move forward andshift automatically through the forwardgears.
The transmission shifts to the appropriategear for optimum performance based onambient temperature, road slope, vehicleload and your input.
Manual Mode (M) - Vehicles withPaddle Shifters
With the transmission selector in manual(M), the driver can change gears up ordown. After selecting the Manual (M)button while the transmission rangeselector is in the Drive (D) position, younow have control of selecting the gear youdesire using shift buttons on the steeringwheel.
To exit manual mode, push the manual(M) button on your transmission selector.
Low (L) - Vehicles without PaddleShifters
With the transmission selector in low (L),your vehicle provides maximum enginebraking. You can shift the transmission intolow (L) at any vehicle speed. Do not useunder extended or normal drivingconditions as it results in lower fueleconomy.
Manually Shifting Gears
Shifting Using Paddle Shifters
The instrument cluster displays the currentgear. The current gear flashes when yourvehicle cannot shift into the requestedgear. Your vehicle will not shift if therequested gear raises or lowers the enginespeed beyond the limit.
Your vehicle may shift when you fully pressthe accelerator or brake pedal.
Note:Prolonged driving with high enginespeed could cause vehicle damage notcovered by vehicle warranty.
Note:When the vehicle shifts into therequested gear, it could affect drive modes.
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Manually Shifting Gears in Drive (D)
Use this feature when overtaking anothervehicle, or to temporarily change gear.
•Pull any paddle to switch the featureon.
•Pull the right (+) paddle to upshift.
•Pull the left (-) paddle to downshift.
•Hold the (+) paddle for a few secondsto switch the feature off.
Note:If you do not pull either paddle, thefeature switches off after a short period oftime.
Manually Shifting Gears in Manual (M)
Use this feature for engine braking on hillyor mountainous roads, or to select aspecific gear.
•Shift to manual (M) to switch thefeature on.
•Pull the right (+) paddle to upshift.
•Pull the left (-) paddle to downshift.
•Shift to drive (D) to switch the featureoff.
Tow Mode (If Equipped)
To activate tow mode, use thedrive mode switch on the centerconsole. See Selecting a DriveMode (page 273).
The indicator light illuminates and amessage displays in the instrument clusterwhen the system becomes active. Selecta different mode to switch the system off.
The Tow Mode Feature:
•Moves upshifts to higher engine speedsto reduce the frequency oftransmission shifting.
•Provides engine braking in all forwardgears, which slows your vehicle andassists you in controlling your vehiclewhen descending a slope.
•Depending on driving conditions andload conditions, it may downshift thetransmission, slow your vehicle andcontrol your vehicle speed whendescending a hill, without pressing theaccelerator pedal. The amount ofdownshift braking provided variesbased upon the amount you press thebrake pedal.
The tow mode feature improvestransmission operation when towing atrailer or a heavy load. All transmissiongear ranges are available when using towmode.
Transmission Not in Park (P)Audible Warning
Sounds if you open the driver door beforeshifting into park (P).
Manual Park Release (MPR)
WARNING: When doing thisprocedure, you need to take thetransmission out of park (P) whichmeans your vehicle can roll freely. Toavoid unwanted vehicle movement,apply the parking brake prior to doingthis procedure. Use wheel chocks ifappropriate.
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Returning Your Vehicle to NormalMode
1.Reconnect the negative (black) batterycable to the battery.
2.Apply the parking brake. See ElectricParking Brake (page 211).
Note: If the vehicle battery is dead, forexample, no electrical power is available,you require an external power to apply theparking brake.
3.Fully apply the brake pedal and hold,do not release.
4.Insert the screwdriver tool fully into themanual park release lever slot. Pushthe tool downwards. The systemdetent releases and the manual parkrelease lever moves forward, allowingthe vehicle to go back into park (P).Remove the tool.
5.Install the access cover.
6.With your foot fully applied on thebrake pedal, start your vehicle. Confirmthat your vehicle is in the park (P)position and that the instrumentcluster indicates park (P).
7.If the instrument cluster does notdisplay the park (P) position or thereis a message stating park (P) is notavailable, transmission not in park (P)or a shift system fault, apply theparking brake before exiting yourvehicle and have your vehicle checkedimmediately.
If Your Vehicle Gets Stuck in Mudor Snow
If your vehicle gets stuck in mud or snow,rock it out by shifting between forward andreverse gears, stopping between shifts ina steady pattern. Press lightly on theaccelerator in each gear.
Note:Do not rock the vehicle if the engineis not at normal operating temperature ordamage to the transmission could occur.
Note:Do not rock the vehicle for more thana minute or damage to the transmission andtires may occur, or the engine couldoverheat.
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