Emission-control system maintenance 9-20 Vehicle care and maintenance
9
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Your vehicle is equi
pped with an emission-
control system that me
ets all the requirements
of the U.S. Environmental Protection Agencyand Environment Cana
da. The emission-con-
trol system is made of: a positive crankcase ventilation system an evaporative emission-control system an exhaust emission-control system
To be sure the emission-control system works properly, have your vehicle inspected andmaintained by an authorized Mitsubishi Motors dealer or a repair facility of your choice. This should be
done at the time or
mileage specified in the “WARRANTY AND MAINTENANCE MANUAL”. These, and all the other “general” mainte-nance services listed in this manual, need to be performed to keep your vehicle running properly and reliably.You should also have an inspection and ser- vice any time you
suspect a malfunction.
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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 MAINTENANCE MANUAL”.
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Check the hose surfaces for any heat and mechanical damage, ha
rd and brittle rubber,
cracking, tears, cuts and abrasions. Pay spe-cial attention to the hos
es closest to high heat
sources such as the exhaust manifold. Check all the hose connections, such as clamps andcouplings, to make sure they are secure and that there are no leaks. If you see any wear or damage, replace the hoses immediately.
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Have the valve clea
rance checked at an
authorized Mitsubishi Motors dealer at the mileage specified in
the “WARRANTY AND
MAINTENANCE MANUAL”.If the engine sounds ab
normally loud, have
adjustments made by an authorized Mitsubishi Motors dealer.
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Check these regularly for damage or leaks in the fuel lines and conne
ctions. Check the fuel
tank filler cap for dama
ge or looseness. Pay
special attention to the fuel lines closest to
Emission-control system maintenance
NOTE
To meet government
regulations and pro-
mote cleaner air, your
vehicle is equipped
with an onboard diagnostic system (OBD).The engine electroni
c control module that
controls OBD functions
stores various data
(especially about th
e exhaust emissions).
This data will be erased if the battery cable is disconnected, which c
ould make a rapid
diagnosis difficult.
Do not disconnect the
battery cable when the engine malfunction indicator (“SERVIC
E ENGINE SOON” or
“Check engine light”) is ON.
Spark plugs
NOTE
Use the spark plugs listed under “Engine specifications” on page
11-5 or plugs that are
exactly the same. Othe
r plugs could cause
engine damage, perf
ormance problems or
radio noise.
Fuel hoses Intake valve clearance Fuel system (tank, pipe line and connection, and fuel tank filler cap)
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Engine specifications Specifications 11-5
11
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Battery is a 12 volt type.
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PCD: Pitch Circle Diameter (installation holes)
Engine specifications Engine model
3A92
Engine displacement
72.8 CID (1,193 cm
3)
No. of cylinders and cyli
nder arrangement Inline-3
Bore
2.95 in (75.0 mm)
Stroke
3.54 in (90.0 mm)
Compression ratio
10.5:1
Thermostat valve opening temperature 189 °F (87 °C)Spark plugs
NGK LZFR5DI-11
Spark plug gap .040 to .043 in (1.0 to 1.1 mm)Firing order
1-3-2
Battery
55D23L (356CCA/99RC)
Tires and wheels Tire
165/65R14
79S
175/55R15
77V
Wheel
Size 14 x 5 J 15 x 5 1/2JPCD 3.93 in (100 mm)Offset 1.5 in (38 mm)
NOTE
Contact an authorized Mitsubishi Motors dealer for details on the combination used onyour vehicle. These tires satisfy ve
hicle loading conditions
described in this owner’s manual.
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