2010 MITSUBISHI LANCER engine

Vehicle care and maintenance
7-41
7
NOTE
To meet government regulations and promote cleaner air,
your vehicle is equipped with an onboard diagnostic sys-
tem (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
rapid diagnosis difficult. Do not disconnect the battery
cable when the engine malfunction indicator (“SERVICE
ENGINE SOON” or “Check engine light”) is on.
Spark plugs
N00940900198
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 MAINTE-
NANCE MANUAL”.
Your vehicle may be equipped with iridium tipped spark plugs,
which are identified by marks on the ceramic. They do not
require replacement as frequently as the conventional type
spare plug and will last much longer.NOTE
Use the spark plugs listed under “Engine specifications”
on page 9-8 or plugs that are exactly the same. Other
plugs could cause engine damage, performance problems
or radio noise.
Type 1
Type 2 Iridium tipped type
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7-42 Vehicle care and maintenance
7
Fuel hoses
N00941000037
Check the hose surfaces for any heat and mechanical damage,
hard and brittle rubber, cracking, tears, cuts and abrasions. Pay
special attention to the hoses closest to high heat sources such
as the exhaust manifold. Check all 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 or damage, replace the
hoses immediately.Ignition cables
N00941100041
The ignition cables should be kept clean, properly connected,
and fully seated. Terminals should be fully seated and the nip-
ple assemblies should not be removed from the coil towers
unless the nipples are damaged or cable testing indicates high
resistance or broken insulation. Cracked or damaged cables
must be replaced.Intake valve clearance
N00950100050
Have the valve clearance checked at an authorized Mitsubishi
Motors dealer at the mileage specified in the “WARRANTY
AND MAINTENANCE MANUAL”.
If the engine sounds abnormally loud, have adjustments made
by an authorized Mitsubishi Motors dealer.
Fuel system (tank, pipe line and connection, and
fuel tank filler cap)
N00941300085
Check these regularly for damage or leaks in the fuel lines and
connections. Check the fuel tank filler cap for damage or loose-
ness. Pay special attention to the fuel lines closest to high heat
sources such as the exhaust manifold.Evaporative emission control system (except
evaporative emission canister)
N00941400116
If the fuel-vapor vent line is clogged or damaged, the fuel-
vapor mixture will escape, polluting the air.
Have the system checked at an authorized Mitsubishi Motors
dealer at the mileage specified in the “WARRANTY AND
MAINTENANCE MANUAL”.
WARNING
!
If you see a fuel leak or if you smell fuel, do not run
the engine. Any spark (including from the ignition),
flame or smoking material could cause an explosion
or fire. Call an authorized Mitsubishi Motors dealer
or a repair facility of your choice for assistance.
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7-44 Vehicle care and maintenance
7
Drive belt (for generator, power steering pump,
air conditioning compressor)
N00941900267
Check the tension of the drive belt. Make certain that the indi-
cator (A) is between the specified lines as shown in the illustra-
tion.
Check the drive belt for cuts and cracks, and replace it if it is
damaged. When replacing the belt, make sure that there is no
interference between the belt and other engine components.
After replacing, recheck the tension to make sure the indicator
(A) is between the specified lines.Except for vehicles with turbocharger
WARNING
!
Do not check or touch the drive belt with the engine
running, or serious injury or death may result.Vehicles with turbocharger
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Vehicle care and maintenance
7-45
7
Exhaust system
N00942200108
The best way to keep carbon monoxide gas from entering
inside your vehicle is to have the engine exhaust system prop-
erly serviced.
Have a competent mechanic inspect the complete exhaust sys-
tem and nearby body areas for broken, damaged, deteriorated,
or mispositioned parts if you notice any of the following:

A change in the sound of the exhaust system

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 loose connections could let dangerous exhaust fumes
seep into the luggage compartment and passenger compart-
ments. Check for any of the following conditions:
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.
Hood lock release mechanism and safety catch
N00942500114
The hood lock release mechanism and hood safety catch should
be checked, cleaned, and oiled when needed for easy move-
ment and to stop rust and wear. Use Multipurpose Grease
NLGI Grade 2 sparingly for all sliding parts of the hood latch
and release lever. Work the grease into the hood lock mecha-
nism until all the movable surfaces are covered.
Also, put a light coat of the same grease on the safety catch
wherever moving parts touch.
WARNING
!
Carbon monoxide gas from your vehicle’s exhaust is
poisonous. Breathing these fumes can cause uncon-
sciousness or death.
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7-46 Vehicle care and maintenance
7For cold and snowy weather
N00942600102
Ventilation slotsThe ventilation slots in front of the windshield should be
brushed clear after a heavy snowfall so that the operation of the
heating and ventilation systems will not be impaired.WeatherstrippingTo prevent freezing of the weatherstripping on the doors,
engine hood, etc., they should be treated with silicone grease.Additional equipment (For regions where snow is
encountered)It is a good idea to carry a shovel or a short-handled spade in
the vehicle during the winter so that you can clear away snow
if you get stranded. A small hand-brush for sweeping snow off
the vehicle and a plastic scraper for the windshield, side and
rear window are also useful.
Fusible links
N00942700259
The fusible links will melt to prevent a fire if a large current
attempts to flow through certain electrical systems.
In case of a melted fusible link, see your authorized Mitsubishi
Motors dealer or a repair facility of your choice for inspection
and replacement.
For the fusible links, please refer to “Fuse load capacities” on
page 7-49.
WARNING
!
Fusible links must not be replaced by any other
device. Failing to fit the correct fusible link may
result in fire in the vehicle, property destruction and
serious or fatal injuries at any time.
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Vehicle care and maintenance
7-47
7 Fuses
N00942800801
Fuse block locationTo prevent damage to the electrical system from short-circuit-
ing or overloading, each individual circuit is equipped with a
fuse. The fuse blocks are located in the passenger compartment
and in the engine compartment. Passenger compartmentThe fuse blocks in the passenger compartment are located
behind the fuse lid on the driver’s side as shown.1. Open the fuse lid and pull to remove it.A- Main fuse block
B- Sub fuse block
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7-48 Vehicle care and maintenance
7
2. For vehicles with the bottom cover, use the puller to
loosen the 2 clips (A) and push down the bottom cover.
The puller is in the fuse block in the engine compartment.
Refer to “Fuse replacement” on page 7-54.NOTE
When finished, be sure to return the puller to the fuse
block in the engine compartment.3. To put back the fuse lid, line up the fuse lid hook (B) with
the clamp (C) on the instrument panel and push the lid
back in.
WARNING
!
When changing fuses, do not damage the driver’s
knee airbag harness or accidentally strike the airbag
area with hard objects. Improper work methods
could result in an accidental driver’s knee airbag
deployment or could make the driver’s knee airbag
inoperable. Either of these situations could result in
serious injury or death.
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Vehicle care and maintenance
7-49
7
Engine compartmentIn the engine compartment, the fuse block is located as shown
in the illustration.
1. Push the lock lever.
2. Remove the fuse block cover.
Fuse load capacities
N00954800114
This fuse list shows the names of the electrical systems and
their fuse capacities.
There are spare fuses in the cover of the fuse block in the
engine compartment. Always replace a blown fuse with one of
the same capacity as the original.
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