Page 394 of 494

Vehicle care and maintenance
7-3
7 Catalytic converter
N00937400391
The catalytic converter requires you to use unleaded fuel only.
Leaded gasoline will destroy the emission-control effective-
ness of the converter.
Normally, the catalytic converter does not require maintenance.
However, it is important to keep the engine properly tuned for
the converter to continue to work properly. To reduce the possibility of catalytic converter damage:
Use UNLEADED GASOLINE ONLY of the type of rec-
ommended in “Fuel selection”.
Do not drive with an extremely low fuel level. Running
out of gas could damage the catalytic converter.
Do not try to start the engine by pushing or towing the
vehicle. If the battery is weak or run down, use jumper
cables to properly start the engine.
Do not idle the engine with any spark plug wires discon-
nected or removed, such as when performing diagnostic
tests.
Do not idle the engine for a long time if it is idling
roughly or otherwise obviously malfunctioning.
To prevent the catalytic converter from being damaged
from unburned gas, do not race the engine when turning
off the ignition switch.
Stop driving the vehicle if you think the performance is
noticeably low, or the engine has a malfunction. If you are
not able to stop driving immediately, slow down and drive
for only a short time. Have an inspection made by an
authorized Mitsubishi Motors dealer or a repair facility of
your choice as soon as possible.
In unusual situations involving major engine problems, a
burning odor may indicate severe and abnormal catalytic
converter overheating. If this occurs, stop in a safe place,
shut the engine off and let the vehicle cool. Once the
engine is cool, immediately take your vehicle to an autho-
rized Mitsubishi Motors dealer or a repair facility of your
choice for service.
CAUTION
!Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. If
the engine malfunctions or misfires, or if your vehi-
cle performance suffers, have it serviced promptly.
Running your vehicle when it is overheated may
result in damage to the converter and vehicle.
WA R N I N G
!Do not park or run your vehicle in areas where com-
bustible materials such as dry grass or leaves can
come in contact with a hot exhaust, since a fire could
occur.Do not put undercoat paint on the catalytic con-
verter.
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Page 423 of 494

7-32 Vehicle care and maintenance
7
NOTETo 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
N00940900039
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.NOTEUse the spark plugs listed under “Engine specifications”
on page 9-7 or plugs that are exactly the same. Other
plugs could cause engine damage, performance problems
or radio noise.
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.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.
WA R N I N G
!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.
BK0115900US.book 32 ページ 2009年10月27日 火曜日 午後12時1分
Page 480 of 494
Specifications
9-7
9 Engine specifications
N01147700426
Item
2.4 liter
3.8 liter
Engine model 4G69 6G75Engine displacement 145.1 CID (2,378 cm³) 233.6 CID (3,828 cm³)No. of cylinders and cylinder arrangement 4 in-line 6-V60°Bore 3.43 in (87.0 mm) 3.74 in (95.0 mm)Stroke 3.93 in (100.0 mm) 3.54 in (90.0 mm)Compression ratio 9.5 10.5Thermostat valve opening temperature 188.6 °F (87.0 °C) 179.6 °F (82.0 °C)Spark plugs
NGK LZFR6AI IFR6B-K
Spark plug gap .028 to.031 in (0.7 to 0.8 mm)Firing order 1-3-4-2 1-2-3-4-5-6Ignition timing, idle speed, mixture Refer to the “Vehicle emission control information label” inside panel of the engine hood.
BK0115900US.book 7 ページ 2009年10月27日 火曜日 午後12時1分
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Alphabetical index
6AM/FM/Satellite electronically tuned radio with CD
autochanger-Type 3 5-39
General information about your radio 5-76
Rear combination lights 7-59
Rear hatch 3-16
Rear seat 2-11
Rear shelf panel 3-178
Rear side-marker lights
Bulb capacity 7-49
Replacement 7-59
Rear turn signal lights
Bulb capacity 7-49
Replacement 7-59
Rear window defogger switch 3-136
Rear-view camera 3-102
Rearview mirror
Inside 3-56
Outside 3-58
Refrigerant (air conditioning) 9-9
Replacement of light bulbs 7-47
Replacing tires and wheels 7-25
Reporting Safety Defects 8-3
S
Safe driving techniques 4-4
Seat 2-2
Front seats 2-4
Heated seats 2-10
Rear seat 2-11Seats and restraint systems 2-3
Seat belt 2-13
Adjustable seat belt shoulder anchor 2-19
Child restraints 2-24
Driver’s seat belt reminder/warning light 2-18
Front passenger seat belt warning light 2-19
Maintenance and inspection 2-35
Pre-tensioner 2-22
Seat belt extender 2-21
Seat belt guide 2-20
Seat belt use during pregnancy 2-22
Service brake 3-80
Service precautions 7-2
Skid control function 3-86
Snow tires 7-28
Spark plugs 7-32
Speedometer 3-106
Starting
At extremely cold ambient temperature 3-65
Flooded engine 3-66
Normal conditions 3-65
Steering
Power steering fluid 7-16
,9-9
Tilt lock lever 3-55
Wheel lock 3-63
Steering wheel remote control switch 5-65
Stop and tail light
Bulb capacity 7-49
Replacement 7-59
BK0115900US.book 6 ページ 2009年10月27日 火曜日 午後12時1分