check engine MITSUBISHI LANCER EVOLUTION 2015 10.G Service Manual

Service precautions 9-2 Vehicle care and maintenance
9
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Taking regular care of your vehicle will pre- serve its value and appearance as long as pos-sible. You can do some of the maintenance work yourself, and the rest should only be per- formed by an authorized Mitsubishi Motorsdealer or a repair facility of your choice.If you discover a malfunction or other prob- lem, have it corrected by an authorized Mit- subishi Motors dealer or a repair facility ofyour choice. This section describes the maintenance inspections that you can do yourself, if you sodesire. Follow the instructions and precau- tions for each procedure.
Have you purchased the Mitsubishi Motors Diamond Care Protection Plan? The Plan supplements your new vehicle warranties. See your authorized Mitsubishi Motors dealerfor details.
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The catalytic converter requires you to useunleaded fuel only. Leaded gasoline will destroy the emission-control effectiveness of the converter. Normally, the catalytic converter does not require maintenance. However, it is important to keep the engine properly tuned for the con- verter to continue to work properly.
Service precautions
WA R N I N G When checking or servicing the inside of the engine compartment, be sure theengine is stopped and has had a chance to cool down.  If you need to work in the engine compart- ment with the engine running, be espe-cially careful that your clothing, hair, etc. does not get caught in
the fan, drive belts,
or other moving parts.
 The fan can turn on automatically even if the engine is not running. Turn the igni- tion switch to the “LOCK” position to be safe while you work in the engine com- partment. Do not smoke or allow open flames around fuel or the battery. The fumes are flamma-ble.  Be extremely careful when working around the battery. It contains poisonous and corrosive sulfuric acid.  Do not get under your vehicle while it is on a jack. Always use properly rated automotivejack stands.  Handling your vehicle’s parts and materi- als in the wrong way can injure you. Ask an authorized Mitsubishi Motors dealer or a repair facility of your choice if youhave questions. WA R N I N G
Catalytic converter
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View of the engine compartment
Vehicle care and maintenance 9-5
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Unlatch the prop from the engine hood and put it back in its retainer. Slowly lower the engine hood about 8 inches (20 cm), then let it drop from its own weight.
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It is normal for an engi
ne to use oil. You may
need to add oil between the recommended oil change intervals. Before starting the engine,check the engine oil level. Refill if necessary. To check the oil level, remove the dipstick, wipe it off, and gently insert it all the way into the crankcase. Slowly remove it again.The oil level must not go above the line on the dipstick. If the level does not reach the line, which shows the smallest amount of oil required,remove the oil filler cap on the engine valve cover, and fill to with
in the “Good” range.
To close
CAUTIONBe careful not to trap your hands or fingers when closing the engine hood.  Make sure the engine hood is firmly closed before driving.If you drive without the engine hood com- pletely closed, it could open up while driv- ing.NOTE
 If this does not close the engine hood prop- erly, drop it again from a slightly higher position.
 Do not push down strongly on the engine hood. Depending on how strongly or where you push down, you could create a dent in the vehicle body.  If you drive with the engine hood left open, warning display is displayed on the informa- tion screen in the multi-information display.
View of the engine compart- ment 1- Power steering fluid reservoir 2- Air cleaner filter 3- Brake fluid/Clutch fluid reservoir (if so
equipped)NOTE
4- Engine coolant reservoir 5- Engine oil level dipstick6- Radiator cap 7- Engine oil filler capEngine oil and oil filter To check and refill engine oil
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Engine coolant
Vehicle care and maintenance 9-7
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Always use SAE 5W-30 engine oil. Mitsubishi Motors Genuine 5W-30 EngineOil is the recommended oil for optimum engine performance and protection.
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The oil filter should be replaced at the time or mileage specified in the “WARRANTY ANDMAINTENANCE MANUAL”. Only use high quality replacement filters on this vehicle. The manufacturer’s specifica-tions for Genuine Mitsubishi oil filters require that the filter can withstand a pressure of 256 psi (1.8 MPa). A Genuine Mitsubishioil filter is the best replacement filter. Follow the installation
instructions printed on
the filter.
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The coolant reserve tank (A) lets you quickly see when you need to add coolant. When the engine is cold, the level in the reserve tankshould be between the “FULL” and “LOW” marks. The radiator usually stays full so there is no reason to remove
the radiator cap (B)
except when you check the coolant freezepoint or replace the antifreeze coolant.
Mitsubishi Motors Genuine Coolant provides excellent protection against corrosion and rust formation on all metals, including alumi- num, and prevents blockages in some parts ofengine. If you need to add co
olant often, or if the
level in the reserve tank does not drop whenthe engine cools, the cooling system shouldbe pressure-tested for leaks. Take your vehi- cle to an authorized Mitsubishi Motors dealer or a repair facility of your choice for testing.
Required engine oil viscosity To replace the oil filter
Engine coolant To check the coolant level To add coolant Use “Mitsubishi Motors Genuine Super Long Life Coolant Premium” or equivalent
*.
FULL LOW
*: similar high quality ethylene glycol based non-silicate, non-amine, non-nitrate and non-borate coolant with long life hybrid organic acid technologyCAUTION Do not use alcohol or methanol antifreeze or any engine coolants that contain them. Using the wrong antifreeze can corrode aluminumparts.  The required concentration of anti-freeze dif- fers depending on the expected ambient tem- perature. Above -31 °F (-35 °C) : 50 %concentration of anti-freeze Below -31 °F (-35 °C) : 60 %concentrationof anti-freeze You can check the concentration level with a gauge from an automotive supply store, oryour authorized Mitsubishi Motors dealer or service station can check it for you.
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Air cleaner filter 9-8 Vehicle care and maintenance
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The radiator cap must be tight sealed to pre- vent losing coolant which may result in engine damage. Only use a Genuine Mitsubi-shi Parts radiator cap, or an approved equiva- lent.  Do not overfill the reserve tank.
 Your vehicle uses a special radiator cap that stays sealed and lets the coolant flow from the reserve tank back to the radiator when the engine cools down. If you needto change the cap, use the exact same kind.  Check the coolant freeze point in the radi- ator with the proper gauge, and only when it is safe. If you add antifreeze, the con- tents of the reserve tank must be protectedagainst freezing.  Keep the front of the radiator and con- denser clean.  If the temperature of the engine coolant does not rise after the engine is warmed- up, take your vehicle to an authorized Mitsubishi Motors dealer or a repair facil-ity of your choice to have the thermostat checked, and replaced if necessary.
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The air cleaner filter w
ill get dirty and dusty
from use and not filter properly. Replace it with a new filter using the schedule in the“WARRANTY AND MAINTENANCE MANUAL”. 1. Unclamp and take out the air cleaner fil- ter.
2. Install the air cleaner filter and put the cover back on in its original position.
 Do not use water to adjust the concentration of coolant. Do not top off the tank with plain water only. Water by itself boils at a lower temperatureand does not stop rust or freezing. If the water freezes, it will damage your cooling system. Do not use tapwater. It can causecorrosion and rust.
Radiator cap
WA R N I N G Wait for the engine to cool down before opening the radiator cap. Otherwise hotsteam or boiling coolant could spray up from the radiator and scald you.
Points to remember
CAUTION
Air cleaner filter
NOTE
 Genuine Mitsubishi Moto
rs Parts are recom-
mended when replacing the air cleaner filter.  After replacing the air cleaner filter, make sure that the hinges at the bottom of cover are firmly set.
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Washer fluid 9-10 Vehicle care and maintenance
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The windshield washer fluid reservoir is in the trunk. Check the washer fluid level at regular inter- vals and add washer fluid to reservoir if nec-essary.
When freezing weather is anticipated, flush out the water in the reservoir by operating the pump. Fill the reservoir with windshield anti-freeze (not radiator antifreeze), and operate the system for a few seconds to flush out the residual water.
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The brake fluid and the clutch fluid share thereservoir tank.
The fluid level must be between the “MAX” and “MIN” marks on the reservoir. The fluid level falls slightly with wear of the brake pads, but this does not indicate any abnormality. The fluid in the master cylinder should be checked when doing other work under theengine hood. The brake system should also be checked for leaks at the same time. If the fluid level falls markedly in a shortlength of time, it indicates leaks from the brake system. If this occurs, have the vehicle checked by anauthorized Mitsubishi Motors dealer or a repair facility of your choice.
Fluid type Lubricant
MITSUBISHI MOTORS Genu-
ine ATF SP III
Washer fluid
NOTE
 Do not spill the fluid onto the trunk. If the fluid spilled, wipe it up immediately.
During cold weather Brake fluid/Clutch fluid
(if so
equipped)
To check the fluid level

MAX MIN
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Power steering fluid
Vehicle care and maintenance 9-11
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Use brake fluid conforming to DOT 3 or DOT 4. The reservoir cap must be tightlysealed to keep dirt and water out.
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Check the fluid level in the reservoir while the engine is idling. Check to make certain that the power steeringfluid level is always between the “MAX” and “MIN” level markings on the fluid reservoir and refill the fluid, if necessary.
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The vehicle battery is installed in the trunkbehind a panel. The condition of the battery is very important for quick starting and to keep the vehicle’selectrical system working properly. Be sure to have an authorized Mitsubishi Motors dealer check the battery.
The battery is weaker in cold temperatures. This has to do with its chemical and physical properties and is why a very cold battery,especially one with a low charge, will have a hard time starting your vehicle. It is recommended that you have your batteryand charging system checked by an autho- rized Mitsubishi Motors dealer before the
Fluid type

CAUTION Do not let any petroleum-based fluid touch, mix with, or get into
the brake fluid. This
will damage the seals. Be careful when handling brake fluid. It can damage painted surfaces. Use only the listed brake fluid. Different brands of brake fluid have different addi-tives, and these can cause a chemical reac- tion. Do not mix brands of brake fluid. Keep the reservoir tank cap closed to keep the brake fluid from evaporating.
Power steering fluid To check the fluid level
Fluid type Lubricant
Mitsubishi Motors Genuine
Power Steering Fluid
Battery
WA R N I N G Be sure to have an authorized Mitsubishi Motors dealer charge the battery. Do not charge the battery yourself, as it shouldonly be charged after first being removed from the vehicle. In addition, never remove the batterylabel, upper cover, exhaust tube, or pipe. Flammable gases may leak and explode.
During cold weather
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Clutch pedal free play (if so equipped) Vehicle care and maintenance 9-19
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In some areas of the country, snow tires are required for winter driving. If snow tires arerequired in your area, you must choose snow tires of the same size and type as the original tires provided with your vehicle. Snow tiresshould also be installed on all four wheels. Otherwise your safety and vehicle handling can be reduced.Even where laws may permit it, snow tiresshould not be operated at sustained speeds over 75 mph (120 km/h).
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To check the clutch pedal free play (A), turn off the engine and press the pedal until you feel resistance. Clutch pedal free play: .2 to .4 inch (4 to 9 mm)
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To check the brake pedal free play (A), turnoff the engine and press the brake pedal sev-eral times with your foot. Then press the pedal down with your fingers until you first feel resistance. Brake pedal free play: .1 to .3 inch (3 to 8 mm) If the free play is not within these limits, take your vehicle to an authorized Mitsubishi Motors dealer or a repair facility of your choice for adjustment.
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Check the parking brake lever travel occa-sionally. To check this, pull the lever up
Snow tires
CAUTION If flange nuts are used on your vehicle, change to tapered nuts when using snow tireswith steel wheels.  Only Mitsubishi Motors genuine wheels should be used, because your vehicle is equipped with a tire pressure monitoring sys- tem.Use of another type of wheel risks air leaks and sensor damage, as it will not be possible to install the tire pressure sensor properly.
Tire chains
CAUTION Tire chains cannot be used on your vehicle. The clearance between the chains and the body is not sufficient to allow proper clear- ance, and the vehicle body might be dam-aged.
Clutch pedal free play
(if so
equipped)
Brake pedal free play Parking brake lever stroke
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General maintenance
Vehicle care and maintenance 9-21
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Spark plugs must fire properly for good engine performance and emission-control.Do not reuse them by cleaning or regapping. Change them at the mileage listed in the “WARRANTY AND MAINTENANCEMANUAL”.
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Check the hose surfaces for any heat andmechanical damage, hard and brittle rubber,cracking, tears, cuts and abrasions. Pay spe- cial attention to the hoses closest to high heat sources such as the exhaust manifold. Checkall the hose connections, such as clamps and couplings, to make sure
they are secure and
that there are no leaks. If you see any wear ordamage, replace the hoses immediately.
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Have the valve clearance checked at anauthorized Mitsubishi Motors dealer at themileage specified in the “WARRANTY AND MAINTENANCE MANUAL”. If the engine sounds abnormally loud, haveadjustments made by an authorized Mitsubishi Motors dealer.
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Check these regularly for damage or leaks in the fuel lines and connections. Check the fuel tank filler cap for damage or looseness. Pay special attention to the fuel lines closest to
high heat sources such as the exhaust mani- fold.
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If the fuel-vapor vent line is clogged or dam- aged, the fuel-vapor mixture will escape, pol- luting the air.Have the system checked at an authorized Mitsubishi Motors dealer at the mileage spec- ified in the “WARRANTY AND MAINTE-NANCE MANUAL”.
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The next pages list the maintenance servicerecommended by Mitsubishi Motors Corpo- ration. In addition to the general maintenance that needs to be performed at the times listed,
NOTE
 To meet government regulations and pro- mote cleaner air, your vehicle is equipped with an onboard diagnostic system (OBD). The engine electronic control module that controls OBD functions stores various data(especially about the exhaust emissions). This data will be erased if the battery cable is disconnected, which could make a rapiddiagnosis difficult. Do not disconnect the battery cable when the engine malfunction indicator (“SERVICE ENGINE SOON” or“Check engine light”) is on.
Spark plugs
NOTE
 Use the spark plugs listed under “Engine specifications” on page 11-4 or plugs that are exactly the same. Other plugs could causeengine damage, performance problems or radio noise.
Fuel hoses Intake valve clearance Fuel system (tank, pipe line and connection, and fuel tank filler cap)
WA R N I N G If you see a fuel leak or if you smell fuel, do not run the engine. Any spark (includ- ing from the ignition), flame or smokingmaterial could cause an explosion or fire. Call an authorized Mitsubishi Motors dealer or a repair facility of your choicefor assistance.
Evaporative emission control system (except evaporative emission canister) General maintenance
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General maintenance 9-22 Vehicle care and maintenance
9
there are other parts which do not usually need regular maintenance. But, if any of these pa
rts stops working prop-
erly, your vehicle performance could suffer.Have these items checked if you notice a problem with them. See your authorized Mitsubishi Motors dealer for assistance, if you have any questions.
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Good brakes are essential to safe driving. Check the brake pads for wear. For good braking performance, replace the brake padswith the same type pads as the originals.
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Brake hoses and tubing should be checkedfor:  Severe surface cracking, scuffing or worn spots. If the fabric casing of the hose is showing through any cracks or worn spotsin the rubber hose cover, the hose should be replaced. The brakes can fail if the hose wears through. Improper installation may cause twisting, or wheel, tire or chassis interference.
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Check the following parts for damage and grease leaks:  Ball joint boots of the front suspension and steering linkage  Bellows on both ends of the drive shaft
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The best way to k
eep carbon monoxide gas
from entering inside your vehicle is to have the engine exhaust system properly serviced. Have a competent mechanic inspect the com-plete exhaust system and nearby body areas for broken, damaged, deteriorated, or mispo- sitioned parts if you notice any of the follow-ing:  A change in the sound of the exhaust sys- tem  The smell of exhaust fumes inside the vehicle
 The underside or rear of the vehicle is damaged
Also check the exhaust system each time the vehicle is raised for lubrication, oil changes, or required service. Any open seams or looseconnections could let dangerous exhaust fumes seep into the luggage compartment and passenger compartments.  Check for holes or exhaust gas leaks caused by corrosion or damage. Check the joints and connections for looseness or exhaust gas leaks.  Check the rubber hangers and brackets for damage.
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The hood lock release mechanism and hood safety catch should be checked, cleaned, and oiled when needed for easy movement and tostop rust and wear. Use Multipurpose Grease NLGI Grade 2 sparingly for all sliding parts of the hood latch and release lever. Work thegrease into the hood lock mechanism until all the movable surfaces are covered.
Disc brake pads Brake hoses
Ball joint, steering linkage seals and drive shaft boots Exhaust system
WA R N I N G Carbon monoxide gas from your vehicle’s exhaust is poisonous. Breathing these fumes can cause unconsciousness or death.
Check for any of the following conditions: Hood lock release mechanism and safety catch
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Cleaning the outside of your vehicle 9-42 Vehicle care and maintenance
9
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Chemicals contained in the dirt and dust picked up from air, rain, snow or road sur-faces can damage the paint and body of your vehicle if left on. Frequent washing and waxing is the best wayto protect your vehicle from this damage. Do not wash the vehicle in direct sunlight. Park the vehicle in the shade and spray it withwater to remove dust. Next, using plenty ofclean water and a car washing mitt or sponge, wash the vehicle from top to bottom. Use a mild car washing soap if necessary.Rinse thoroughly and wipe dry with a cham- ois or soft cloth. After washing the vehicle, carefully clean the joints and flanges of thedoors, hood, etc., where dirt is likely to remain.
Salt and other chemicals spread on winter roads in some geographical areas can have adetrimental effect on the vehicle underbody. You should flush the underbody with a high pressure hose every time you wash the out-side of your vehicle. Take special care to remove mud or other debris which could trap and hold salt andmoisture.
Wa s h i n g
CAUTION When washing the underside of your vehicle or the wheels, wear a pair of gloves to pro-tect your hands. This vehicle is equipped with a high perfor- mance brakes. Wash the wheels frequently to remove brake dust. The dust will be difficultto remove if left on the wheels for too long.
 If your vehicle has rain sensor wipers, place the wiper switch lever in the “OFF” position to deactivate the rain sensor before washing the vehicle. Otherwise, the wipers will oper- ate in the presence of water spray on thewindshield and become damaged as a result. Never spray or splash water on the electrical parts in the engine compartment. This may damage them. Be careful also when washing the underbody. Do not spray water into theengine compartment. Avoid automatic car washers that use rotat- ing brushes. These brushes may scratch the paint surface and make it dull. Scratches are more noticeable on darker col-ored vehicles. Some hot water washing equipment uses high pressure and heat to clean your vehicle. This heated water may damage your vehi- cle’s resin parts. It can flood the interior ofthe vehicle. Therefore, be sure of the follow- ing:• Keep the washing nozzle at least 20 inches(50 cm) away from the vehicle body.• When washing around the door glass, holdthe nozzle at a distance of more than 20 inches (50 cm) and at right angles to the glass surface. CAUTION
 When using high-pressure water to wash a vehicle equipped with the F.A.S.T.-key sys- tem, keep the water from spraying on the open button on the trunk. This could cause the trunk to open and flood the inside of thetrunk.  Make sure to do the following when using an automatic car wash, with help from either this manual or the car wash operator, to avoid damaging your vehicle:• Fold the outside rear-view mirrors.• Remove the antenna.• If your vehicle is equipped with rearspoiler, check with the car wash operator before using the car wash.• If your vehicle has rain sensor wipers, placethe wiper switch lever in the “OFF” posi- tion to deactivate the rain sensor.
During cold weather
CAUTION
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