engine FORD MAVERICK 2023 Service Manual

AUTO-START-STOP –FREQUENTLY ASKED QUESTIONS
Why does the engine not alwaysstop when I expect it to?
The system is designed to work in a waythat complements other vehicle systems,allowing them to operate at optimumperformance.
The system does not stop the engine if:
•The driver door is open.
•Your vehicle is at high altitude.
•The heated windshield is on.
•The engine is warming up.
•The outside temperature is too low ortoo high.
•The battery charge is low.
•The battery temperature is outside theoptimal operating range.
•The engine is required to run tomaintain interior climate and reducefogging.
Why does the engine sometimesrestart when I do not expect it to?
The system is designed to work in a waythat complements other vehicle systems,allowing them to operate at optimumperformance.
The system restarts the engine if:
•You switch the heated windshield on.
•You switch maximum defrost on.
•Your vehicle starts to roll downhill inneutral.
•The engine is required to run tomaintain adequate brake systemassistance.
•The engine is required to run tomaintain interior climate and reducefogging.
Can I permanently switch thesystem off?
No. The system plays an important role inreducing the fuel consumption and the CO2emissions.
Will the frequent engine startscause parts to wear out?
Your vehicle has an enhanced battery andstarter motor that are designed for theincreased number of engine starts.
170
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingAuto-Start-Stop - Gasoline

FUEL AND REFUELING
PRECAUTIONS
WARNING: Do not overfill the fueltank. The pressure in an overfilled tankmay cause leakage and lead to fuel sprayand fire.
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.
WARNING: Fuels can cause seriousinjury or death if misused or mishandled.
WARNING: Fuel may containbenzene, which is a cancer-causingagent.
WARNING: When refueling alwaysshut the engine off and never allowsparks or open flames near the fuel tankfiller valve. Never smoke or use a cellphone while refueling. Fuel vapor isextremely hazardous under certainconditions. Avoid inhaling excess fumes.
WARNING: Read and follow all theinstructions on the pump island.
Follow these guidelines when refueling:
•Extinguish all smoking materials andany open flames before refueling yourvehicle.
•Switch the engine off before refueling.
•Automotive fuels can be harmful orfatal if swallowed. Fuel is highly toxicand if swallowed can cause death orpermanent injury. If fuel is swallowedimmediately call a physician, even if nosymptoms are immediately apparent.The toxic effects of fuel may not beapparent for hours.
•Avoid inhaling fuel vapors. Inhaling fuelvapor can lead to eye and respiratorytract irritation. In severe cases,excessive or prolonged breathing offuel vapor can cause serious illness andpermanent injury.
•Avoid getting fuel in your eyes. If yousplash fuel in your eyes, immediatelyremove contact lenses, if worn, flushwith water for 15 minutes and seekmedical attention. Failure to seekproper medical attention could lead topermanent injury.
•Fuels can be harmful if absorbedthrough the skin. If you splash fuel onyour skin, clothing or both, promptlyremove contaminated clothing andthoroughly wash your skin with soapand water. Repeated or prolonged skincontact causes skin irritation.
•Be particularly careful if you are takingAntabuse or other forms of Disulfiramfor the treatment of alcoholism.Breathing fuel vapors could cause anadverse reaction, serious personalinjury or sickness. Immediately call aphysician if you experience any adversereactions.
171
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and Refueling

FUEL QUALITY
SELECTING THE CORRECT FUEL
Your vehicle operates on regular unleadedgasoline with a minimum pump (R+M)/2octane rating of 87.
Some fuel stations, particularly those inhigh altitude areas, offer fuels posted asregular unleaded gasoline with an octanerating below 87. The use of these fuelscould result in engine damage that will notbe covered by the vehicle Warranty.
For best overall vehicle and engineperformance, premium fuel with an octanerating of 91 or higher is recommended. Theperformance gained by using premium fuelis most noticeable in hot weather as wellas other conditions, for example whentowing a trailer. See Towing a Trailer(page 267).
Do not be concerned if the enginesometimes knocks lightly. However, if theengine knocks heavily while using fuel withthe recommended octane rating, contactan authorized dealer to prevent any enginedamage.
We recommend Top Tier detergentgasolines, where available to help minimizeengine deposits and maintain optimalvehicle and engine performance.
For additional information, visitwww.toptiergas.com.
Note:Use of any fuel for which the vehiclewas not designed can impair the emissioncontrol system, cause loss of vehicleperformance, and cause damage to theengine which may not be covered by thevehicle Warranty.
Do not use:
•Diesel fuel.
•Fuels containing kerosene or paraffin.
•Fuel containing more than 15% ethanolor E85 fuel.
•Fuels containing methanol.
•Fuels containing metallic-basedadditives, including manganese-basedcompounds.
•Fuels containing the octane boosteradditive, methylcyclopentadienylmanganese tricarbonyl (MMT).
•Leaded fuel, using leaded fuel isprohibited by law.
The use of fuels with metallic compoundssuch as methylcyclopentadienylmanganese tricarbonyl, which is amanganese-based fuel additive, will impairengine performance and affect theemission control system.
LOCATING THE FUEL FILLER
FUNNEL
The fuel filler funnel is behind theright-hand side rear seat with the vehiclejack.
172
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and RefuelingE161513

Note:If your vehicle runs out of fuel add aminimum of 1.3 gal (5 L) of fuel to restartthe engine.
Note:You may need to switch the ignitionfrom off to on several times after refuelingto allow the fuel system to pump the fuelfrom the tank to the engine. Whenrestarting, cranking time takes a fewseconds longer than normal.
Note:Extra funnels can be purchased froman authorized dealer if you choose todispose of the funnel.
REFUELING
REFUELING SYSTEM OVERVIEW
Fuel filler door.A
Fuel filler inlet.B
Fuel tank filler pipe.C
REFUELING YOUR VEHICLE -EXCLUDING: HYBRID ELECTRICVEHICLE (HEV)
WARNING: When refueling alwaysshut the engine off and never allowsparks or open flames near the fuel tankfiller valve. Never smoke or use a cellphone while refueling. Fuel vapor isextremely hazardous under certainconditions. Avoid inhaling excess fumes.
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.
WARNING: Do not pry open thefuel tank filler valve. This could damagethe fuel system. Failure to follow thisinstruction could result in fire, personalinjury or death.
WARNING: Do not remove the fuelpump nozzle from its fully insertedposition when refueling.
WARNING: Stop refueling whenthe fuel pump nozzle automaticallyshuts off for the first time. Failure tofollow this will fill the expansion spacein the fuel tank and could lead to fueloverflowing.
WARNING: Do not overfill the fueltank. The pressure in an overfilled tankmay cause leakage and lead to fuel sprayand fire.
WARNING: Wait at least fiveseconds before removing the fuel pumpnozzle to allow any residual fuel to draininto the fuel tank.
174
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and RefuelingBCA E267248

WARNING: Read and follow all theinstructions on the pump island.
1.Fully open the fuel filler door.
2.Select the correct fuel pump nozzle foryour vehicle.
3.Insert the fuel pump nozzle up to thefirst notch on the nozzle A. Keep thefuel pump nozzle resting on the fueltank filler pipe.
4.Hold the fuel pump nozzle in positionB when refueling. Holding the fuelpump nozzle in position A can affectthe flow of fuel and shut off the fuelpump nozzle before the fuel tank is full.
5.Operate the fuel pump nozzle withinthe area shown.
6.When the nozzle shuts off, wait at least5 seconds, then slightly raise the fuelpump nozzle and slowly remove it.
7.Fully close the fuel filler door.
Do not attempt to start the engine if youhave filled the fuel tank with incorrect fuel.Incorrect fuel use could cause damage notcovered by the vehicle Warranty. Have yourvehicle immediately checked.
175
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and RefuelingE139202 E139203AB E337395 E119081

REFUELING YOUR VEHICLE -HYBRID ELECTRIC VEHICLE (HEV)
WARNING: When refueling alwaysshut the engine off and never allowsparks or open flames near the fuel tankfiller valve. Never smoke or use a cellphone while refueling. Fuel vapor isextremely hazardous under certainconditions. Avoid inhaling excess fumes.
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.
WARNING: Do not pry open thefuel tank filler valve. This could damagethe fuel system. Failure to follow thisinstruction could result in fire, personalinjury or death.
WARNING: Do not remove the fuelpump nozzle from its fully insertedposition when refueling.
WARNING: Stop refueling whenthe fuel pump nozzle automaticallyshuts off for the first time. Failure tofollow this will fill the expansion spacein the fuel tank and could lead to fueloverflowing.
WARNING: Do not overfill the fueltank. The pressure in an overfilled tankmay cause leakage and lead to fuel sprayand fire.
WARNING: Wait at least fiveseconds before removing the fuel pumpnozzle to allow any residual fuel to draininto the fuel tank.
WARNING: Read and follow all theinstructions on the pump island.
1.When you stop your vehicle, shift intopark (P) and switch the ignition off.
2.Press the button on the left side of theinstrument panel next to the headlampswitch to open the fuel filler door. Thefuel filler door can take up to 15seconds to open before you can inserta fuel filler nozzle.
176
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and RefuelingE293006 E139202

3.Insert the fuel pump nozzle up to thefirst notch on the nozzle A. Keep itresting on the cover of the fuel tankfiller pipe opening.
4.Hold the fuel pump nozzle in positionB when refueling. Holding the fuelpump nozzle in position A can affectthe flow of fuel and shut off the fuelpump nozzle before the fuel tank is full.
5.Operate the fuel pump nozzle withinthe area shown.
6.When the nozzle shuts off, wait at least5 seconds, then slightly raise the fuelpump nozzle and slowly remove it.
7.Fully close the fuel filler door.
Complete the refueling process within 20minutes. If 20 minutes elapses, press thebutton on the left side of the instrumentpanel again. Fuel pump nozzle automaticshut off could occur if you do not press thebutton on the left side instrument panel.
Do not attempt to start the engine if youhave filled the fuel tank with incorrect fuel.Incorrect fuel use could cause damage notcovered by the vehicle Warranty. Have yourvehicle immediately checked.
MANUALLY OPENING THE FUELFILLER DOOR - HYBRID ELECTRICVEHICLE (HEV)
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.
Note:The transmission must be in park (P)or neutral (N).
When using the manual override lever dothe following:
1.Switch the ignition on.
177
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and RefuelingE139203AB E337454 E119081

FUEL AND REFUELING – INFORMATION MESSAGES - HYBRID ELECTRICVEHICLE (HEV)
ActionMessage
An early reminder of a low fuel condition.Fuel Level Low
The fuel fill inlet may not be properly closed.Check Fuel Fill Inlet
The information message appears while the fuel system isdepressurizing with the fuel filler door closed. Wait for the fuelsystem to depressurize and for the fuel filler door to unlatch.
Please wait for fuel doorto open
The information message appears when the fuel system hasdepressurized and opened the fuel filler door. Fully open thefuel filler door to refuel and fully close the fuel filler door whenrefueling is complete.
Fuel Door Open
Your vehicle is equipped with a sealed fuel system thatrequires the fuel filler door to be fully closed after refueling.This warning message appears when the fuel filler door is ajar.Please fully close the fuel filler door to avoid a "Check Engine"Light.
Fuel door ajar Close fullyto avoid Check enginelight
If you see this message and a "Check Engine" lamp illumin-ates, please fully close the fuel filler door. The "Check Engine"Light should clear within five seconds. If the "Check Engine"light persists, please see your dealer.
The information message appears when the fuel system failsto depressurize, or the fuel filler door fails to open. You couldhave to use the fuel filler door manual override lever whenopening the fuel door.
Refuel Error See Manual
179
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingFuel and Refueling

WHAT IS THE CATALYTIC
CONVERTER
The catalytic converter is part of yourvehicle's emissions system and filtersharmful pollutants from the exhaust gas.
CATALYTIC CONVERTER
PRECAUTIONS
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.
To avoid damaging the catalytic converter:
•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 Precautions (page 284).
•Use the correct fuel. See Fuel andRefueling (page 171).
•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:Do not make any unauthorizedchanges to your vehicle or engine. By law,vehicle owners and anyone whomanufactures, repairs, or services a fleet ofvehicles are not permitted to intentionallyremove an emission control device orprevent it from working.
CATALYTIC CONVERTER –
TROUBLESHOOTING
CATALYTIC CONVERTER –WARNING LAMPS
Your vehicle has an on-board diagnosticssystem that monitors the emission controlsystem. If any of the following warninglamps illuminate, this may indicate thatthe on-board diagnostics system hasdetected an emission control systemmalfunction.
Continuing to drive your vehicle may causereduced power or the engine to stop.Failure to respond to a warning lamp maycause damage that your vehicle Warrantymay not cover. Have your vehicle checkedas soon as possible.
180
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingCatalytic ConverterE103308 E67021 E67028

WHAT IS THE HIGH VOLTAGE
BATTERY
The high voltage battery is a highlysophisticated lithium ion battery system,used to store electrified energy to powerthe vehicle.
HIGH VOLTAGE BATTERY
PRECAUTIONS
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.
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.
181
2023 Maverick (CFE) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingHigh Voltage Battery - Hybrid Electric Vehicle (HEV)