2006 MITSUBISHI LANCER Level

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-4
ON-VEHICLE SERVICE
ENGINE OIL CHECKM1121000900342
ACX00892 AC
Good
Maximum Minimum
<4G1>
AC205268
Maximum MinimumGood
AC
<4G6>
1.
Pull ou t the en gine oil level ga uge slowly and
check tha t the o il level is in t he illustrated range.
2.Check t hat the oil is not excessively dirty , that
th ere is no coolant or p e trol mixed in, and that it
ha s s u f f i c ie nt vi sc osi t y .
ENGINE OIL REPLACEMENT
M1121 0010 0041 6
1.S t art the engin e and allow it to war m up until the
te mpera t ure of the coola n t reaches 80
°C to 90
°C.
2.Remove the en gine oil filler ca p.
CAUTION
Use care as engine oil could be hot.
3. Remove the engine oil pan drain plug to drain
engine oil.
AC208299
Engine oil pan
AC
Engine oip pan
drain plug
Engine oip pan
drain plug
Engine oil
pan side
4. Install a new engine oil pan drain plug gasket so
that it faces in the direction shown in the
illustration, and then tighten the engine oil pan
drain plug to the specified torque.
Tightening torque: 39 ± 5 N⋅m
NOTE: Install the engine oil pan drain plug gasket
so it faces in the direction shown in the illustration.
AC301513
5. Refill with specifi ed quantity of engine oil.
Specified Engine Oil (ACEA and API classifica-
tion): ACEA A1, A2 or A3/API SG or higher
Total quantity (Includes volume inside engine
oil filter):
3.3 L <4G1>
4.3 L <4G6>
6. Install the engine oil filler cap.
7. Check engine oil level.
ENGINE OIL FILTER REPLACEMENTM1121001100383
1. Start the engine and allow it to warm up until the temperature of the coolant reaches 80
°C to 90
°C.
2. Remove the engine oil filler cap.
CAUTION
Use care as engine oil could be hot.
3. Remove the engine oil pan drain plug to drain engine oil.
4. Remove the under cover.
AC000093
MB991396
<4G1>,
MB991828
<4G1>,
MB991610
<4G6> or
commercially-
available tool
AI

AC200625
Cylinder block
drain plug
AC
ON-VEHICLE SER VICE
ENGINE COOLING14-22
5.App l y the designa ted sealant to t he scre w area of
th e cylin der block drain plu g , and then tighten to
th e st and ard torq ue.
Sp e c ified s ealant: 3 M Nut Loc king Part
No. 4171 o r e quivale n t
Ti ghtenin g torque:
40 ± 5 N⋅m <4G1>
44 ± 5 N⋅m <4G6>
6.Securely tighten t he drain plug of t he radiator .
7.Reinst all the ra diato r con denser t ank.
CAUTION
Do not use alcohol or methanol anti-freeze or any
engine coolants mixed with alcohol or methanol
anti-freeze. The use of an improper anti-freeze
can cause corrosion of the aluminium compo
-
nents.
AC303612AB
MB991871
AIR HOSE
8. By referring to the section on coolant, select an
appropriate concentration for safe operating
temperature within the range of 30 to 60%. Use
special tool LLC changer (MB991871) to refill the
coolant. A convenient mixture is a 50% water and
50% antifreeze solution (freezing point:
−31°C).
Recommended antifreeze: DIAQUEEN SUPER LONG LIFE COOLANT or equivalent
Quantity:
5.0 L <4G1>
7.0 L <4G6>
NOTE: For how to use special tool MB991871,
refer to its manufacturer’s instructions.
9. Reinstall the radiator cap.
10.Start the engine and let it warm up until the thermostat opens.
11.After repeatedly revving the engine up to 3,000 r/min several times, then stop the engine.
12.Remove the radiator cap after the engine has become cold, and pour in coolant up to the brim.
Reinstall the cap.
CAUTION
Do not overfill the radiator condenser tank.
13.Add coolant to the radiator condenser tank between the "F" and "L" mark if necessary.
CONCENTRATION MEASUREMENT
M1141001100352
Measure the temperature and specific gravity of the
engine coolant to check the antifreeze concentration.
Standard value: 30 − 60% (allowable concentra-
tion range)
Recommended antifreeze: DIAQUEEN SUPER
LONG LIFE COOLANT or equivalent
CAUTION
If the concentration of the anti-freeze is below
30%, the anti-corrosion property will be
adversely affected. In addition, if the concentra
-
tion is above 60%, both the anti-freezing and
engine cooling properties will decrease, affecting
the engine adversely. For these reasons, be sure
to maintain the concentration level within the
specified range.
COOLING FAN MOTOR DRIVE CONTROL
UNIT CHECK
M1141006100250
1. Remove the cooling fan motor drive control unit connector.
AC103195
Y1716AU
1
23
AC
Cooling fan motor
drive control unit
2. Turn the ignition switch to the "ON" position, and
measure the voltage between terminal 1 and 3 at
the harness side connector.
Standard value: system voltage

INLET MANIFOLD
INTAKE AND EXHAUST15-6
REMOVAL AND INSTALLATION <4G6>
M1151003001236
Pre-removal Operation
•Fuel Line Pressure Reduction (Refer to GROUP 13A -
On-vehicle Service P.13B-325).
•Engine Coolant Draining (Refer to GROUP 14 - On-vehi-cle Service P.14-21).
•Strut Tower Bar Removal (Refer to GROUP 42 P.42-9).
•Throttle Body Assembly Re moval (Refer to GROUP 13B
P.13B-335).
•Fuel Delivery Pipe and Fuel Injector Assembly Removal
(Refer to GROUP 13B
P.13B-333).
Post-installation Operation
•Fuel Delivery Pipe and Fuel Injector Assembly Installation
(Refer to GROUP 13B P.13B-333).
•Throttle Body Assembly Inst allation (Refer to GROUP
13B P.13B-335).
•Strut Tower Bar Installati on (Refer to GROUP 42 P.42-9).
•Engine Coolant Supplying (Refer to GROUP 14 - On-vehi-
cle Service P.14-21).
•Accelerator Cable Adjustment (Refer to GROUP 17 -
On-vehicle Service
P.17-2).
•Fuel Leak Check
AC303657
9.0 ± 1.0 N·m11 ± 1 N·m
20 ± 2 N·m 31 ± 3 N·m
36 ± 6 N·m
20 ± 2 N·m
20 ± 2 N·m
36 ± 6 N·m
20 ± 2 N·m
11
9
10
2
12
N14
13N
AB
5.0 ± 1.0 N·m
3
1
11 ± 1 N·m
4
N
13 ± 1 N·m
5
6
(Engine oil)
7
8
Removal steps
1.Emission control equip hose
connector
2.Brake booster vacuum hose
connection
3.Earth cable connection
4.Engine control detonation sensor
connector
5.Engine oil level gauge and guide
assembly
6.Engine oil filler O-ring
7.Emission vacuum hose connection
Removal steps (Continued)

Removal steps
1.Front exhaust pipe connection
2.Exhaust pipe gasket
<>>>A<<3.Engine control oxygen sensor (front)
4.Engine oil level gauge and guide
assembly
5.Engine oil filler O-ring
6.Exhaust manifold cover
7.Exhaust manifold bracket
8.Exhaust manifold
9.Exhaust manifold gasket
EXHAUST MANIFOLD
INTAKE AND EXHAUST15-8
REMOVAL SERVICE POINT
<> ENGINE CONTROL OXYGEN SEN-
SOR (FRONT) REMOVAL
AC212566AC
MD998770
Engine control
oxygen sensor
(front)
Use spe c ia l tool oxyg en sen s or wrench (MD9987 70)
to remove t
he eng ine contro l oxygen sen s or (fro nt).
INSTALLA T ION SER VICE POINT
>>A<< ENGINE CONT ROL OXYGEN SEN-
SOR (FRONT) INSTALLA TION
AC212566AC
MD998770
Engine control
oxygen sensor
(front)
Use spe c ia l tool oxyg en sen s or wrench (MD9987 70)
to inst
all the eng ine contro l oxyge n sen s or (f ront).

CHARGING SYSTEM
ENGINE ELECTRICAL16-2
CHARGING SYSTEM
GENERAL INFORMATIONM1161000100522
The charging system uses the alternator output to
keep the battery charged at a constant level under
various electrical loads.
OPERATION
AKX00183
VoltageTime
Approximately
14.4 V
AC
Rota tion of the excited fi eld coil gene rates AC volt-
age in the sta t or .
This alternatin g cur r ent is rectified throu gh diodes to
DC volt
age h a ving a waveform sh own in t he illustra
-
tion.
The average outpu t volt a ge flu c tua t es slightly with
the alternato
r load con d ition.
When the ign i tion switch is t u rned on, current flows in
the field coil and initial e
x cit a tion of the field coil
occurs.
When the st ator coil beg ins to gen erate p o wer af ter
the eng
ine is st a r ted, th e fie l d coil is excited by th e
output
curren t of th e st ator coil.
The alternator outpu t volt a ge rises as th e fie l d cur-
rent increa ses and it falls a s the field cu rrent
decre
ases. Whe n the b a ttery volt a ge (alternato r "S"
terminal volt
ag e) reaches a regulated volt ag e of
approximately 14.4
V , the field current is cut o f f.
When th
e batte ry volt age drop s be low the regulated
volt
ag e, the volt ag e regulator re gulat es th e outp u t
volt
ag e to a const ant level by contro lling the field cur
-
rent.
In addition, when th e fie l d current is const a n t, the
altern
ator ou tput volt age rise s as the e ngine spe ed
increase
s .
SYSTEM DIAGRAM
AK400308
Alternator
B
Stator coil
Engine-ECU or
Engine-A/T-ECU
G
SL
FR
<4G1>
Voltage regulator Charge warning lightIgnition switch
Battery
Field coil
+
–
AB
AL TERNA T O R SPECIFICA T IONS
Item4G14G6
Ty p eBattery voltage sensing
Rated output V/A12/8012/110
Voltage regulatorElectronic built-in type

CHARGING SYSTEM
ENGINE ELECTRICAL16-6
9. Check that the reading on the voltmeter is equal
to the battery voltage.
NOTE: If the voltage is 0 V, the cause is probably
an open circuit in the wire or fusible link between
the alternator "B" terminal and the battery (+) ter
-
minal.
10.Turn the light switch on to turn on headlamps and
then start the engine.
11.Immediately after setting the headlamps to high
beam and turning the heater blower switch to the
high revolution position, increase the engine
speed to 2,500 r/min and read the maximum
current output value displayed on the ammeter.
Limit: 70 % of normal current output
NOTE: .
•For the nominal current output, refer to the
Alternator Specifications.
•Because the current from the battery will soon
drop after the engine is started, the above step
should be carried out as quickly as possible in
order to obtain the maximum current output
value.
•The current output value will depend on the
electrical load and the temperature of the
alternator body.
•If the electrical load is small while testing, the
specified level of current may not be output
even though the alternator is normal. In such
cases, increase the electrical load by leaving
the headlamps turned on for some time to dis
-
charge the battery or by using the lighting sys-
tem in another vehicle, and then test again.
•The specified level of current also may not be
output if the temperature of the alternator body
or the ambient temperature is too high. In such
cases, cool the alternator and then test again.
12.The reading on the ammeter should be above the
limit value. If the reading is below the limit value
and the alternator output wire is normal, remove
the alternator from the engine and check the
alternator.
13.Run the engine at idle after the test.
14.Turn the ignition switch to the "LOCK" (OFF)
position.
15.Remove the tachometer or the M.U.T.-II/III.
16.Disconnect the negative battery cable.
17.Disconnect the ammeter and voltmeter.
18.Connect the negative battery cable.

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-9
COMPONENT LOCATION (CRANKCASE
EMISSION CONTROL SYSTEM)
M1173007400208
AK300767
<4G1>
AB
PCV valve
AK204366
<4G6>
AC
PCV valve
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK
M11 7300 1 1 0017 9
1.Remove the ventilatio n hose from the PCV valve.
2.Remove the PCV valve from t he rocker cove r .
3.Reinst all the PCV valve at the ven t ila tion h o se.
4.S t art the engin e and run at idle .
AKX00336
PCV valve
AD
5.Pla c e a fing er at the open ing o f the PCV va lve
an d ch eck that vacu um o f the int a ke manifold is
fe lt.
NOTE: At this mo men t, the p l unge r in t he PCV
valve mo ves back an d forth.
6.If vacuum is not felt, clean t he PCV valve o r
re place it.
POSITIVE CRANKCASE VENTILA TION
(
P CV) V A L VE CHECK
M1173 0012 0018 7
AK100010
PCV valve
AC
1.In sert a thin rod in to the PCV valve from the side
shown in the illu strat i on (ro cke r cover in st allation
side) , and move the ro d back an d forth to ch eck
th at the plung er mo ves.
2.If the plunger does not move , there is a clo ggin g
in the PCV valve. In th is case, clean o r repla c e
th e PCV valve.
EVAPORA T IVE EMISSION CONTROL
SYSTEM
GENERAL INFORMA T ION (EV A PORA TIVE
EMISSION CONTROL SYSTEM)
M1173 0051 0040 5
The evaporat ive emission contro l syste m pre v ent s
f
uel vapours generat ed in t he fuel t ank from escaping
into t
he atmosp here.
Fuel vapours fro m the fuel t a n k flow throug h the f uel
t
a n k pre ssu re co ntrol valve an d vap our pipe/ho se to
be st
ored te mpora r ily in t he ca nister .
When dr iving the veh i cle, fue l va pours stor ed in the
canister
flow thro ugh th e purge solenoid and purge
port an
d go into the int a ke ma nifold to b e sen t to th e
combust
i on chamber .
When the eng ine co ola n t te mp eratu r e is low o r when
the int
a ke air q uantity is small (wh en the engine is at
idle
, for example), t he eng ine contro l unit turns the
purge sole
noid of f to shu t of f the fue l va pour flow to
the in
t a ke manif o ld.
This does not on ly insure the driveability when t he
engin
e is cold or runn ing und er low load b u t also st a
-
bilize the emissio n level.

Battery voltageNormal condition
AppliedVacuum leaks
Not appliedVacuum maintained
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-12
5. Measure the resistance between the terminals of the solenoid valve.
Standard value: 30 − 34 Ω (at 20°C)
FUEL VAPOUR CANISTER RE MOVAL AND INSTALLATION
M1173004200153
Pre-removal and Post-installation Operation
Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15
P.15-3).
AC208253
1
2
3
4 5 6
7 8
AD
Removal steps
1.Emission vacuum hose connection
2.Fuel vapour control line hose
3.Fuel vapour control check valve
4.Fuel vapour control line hose
5.Fuel vapour control line clamp
6.Fuel vapour canister
7.Fuel high-pressure hose clamp
8.Fuel vapour canister bracket
EXHAUST GAS RECIRCULA
T ION
(EGR) SYSTEM
GENERAL INFORMAT ION (EGR SYSTEM)
M1173 0052 0032 7
The exhaust gas recircu l atio n (EGR) system lowers
the nitrogen
oxide (NOx) emission level.
When the air/fuel mixture combus tio n temp erature is
high,
a larg e qua ntity of nitrogen oxides (NOx) is
generat
ed in the comb ustion chamb e r .
Therefor e, this syst em re circulat es p a rt o f emission
gas fro
m the e x ha ust po rt of the cylinder h ead to th e
combust
i on chamber thro ugh th e int a ke ma nifold to
decre
ase the air/fuel mixture combust i on te mpera
-
ture, resulting in redu ctio n of NOx.
The EGR flow rate is cont rolle d by the EGR valve so
as no
t to de crease the driveability .
OPERAT ION
The EGR valve is being clos ed an d does not re circu-
late ex hau st ga ses unde r one o f the fo llo wing condi-
tions.
Otherwise, th e EGR va lve is opene d an d recircul ates
exha
ust g a ses.
•The engine coolan t temperature is low .
•The engine is at idle.
•The throttle va lve is widely ope ned.