MITSUBISHI LANCER 2005 User Guide

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-5
5. Use the respective tool in the following table to
remove the engine oil filter.
6. Clean the filter bracket side mounting surface.
7. Apply a small amount of engine oil to the O-ring of
the new engine oil filter.
8. Once the O-ring of the engine oil filter is touching
the flange, use the respective tool in the following
table to tighten to the specified torque.9. Install the engine oil pan drain plug and refill the
engine oil (Refer to P.12-4).
10.Race the engine 2−3 times, and check to be sure
that no engine oil leaks from installation section of
the engine oil filter.
OIL PRESSURE CHECKM1121002300368
1. Check engine oil quantity.
2. Remove the oil pressure switch terminal. Number Special tool
MD348631 <4G1> Oil filter wrench (MB991828)
or equivalent
MD365876 <4G1>
MD360935 <4G1> Oil filter wrench (MB991396)
or equivalent
MD136466 <4G6> Commercially- available tool
MD322508 <4G6>
MD356000 <4G6> Oil filter wrench (MB991610)
or equivalent
AC000093
MB991396
<4G1>,
MB991828
<4G1>,
MB991610
<4G6> or
commercially-
available tool
AI
AC103250AD
O-ring
Number Special tool Tightening torque
MD348631
<4G1>Oil filter wrench
(MB991828) or
equivalentApproximately 3/4
turn (16 ± 4 N⋅m)
MD365876
<4G1>
MD360935
<4G1>Oil filter wrench
(MB991396) or
equivalentApproximately 1 turn
(14 ± 2 N⋅m)
MD136466
<4G6>Commercially-
available toolApproximately 3/4
turn (17 ± 3 N⋅m)
MD322508
<4G6>
MD356000
<4G6>Oil filter wrench
(MB991610) or
equivalentApproximately 3/4
turn (14 ± 2 N⋅m)
AK101640
<4G1>
Oil pressure
switch
Oil filter
AD
AK300647
AB
<4G6>
Oil filter bracket
Oil pressure switch

ON-VEHICLE SERVICE
ENGINE LUBRICATION12-6
CAUTION
Since sealant is applied to the thread of oil
pressure switch, take care not to damage the oil
pressure switch when removing it.
3. Use the special tool Oil pressure switch wrench
(MD998054) to remove the oil pressure switch.
4. Install the oil pressure gauge.
NOTE: Use an adapter of PT 1/8 thread.
5. Run the engine to warm it.
6. After the engine has been warmed up, check that
oil pressure is within the standard value.
Standard value:
At idle: 29 kPa or more
At 3,500 r/min: 294 − 686 kPa
7. Remove the oil pressure gauge.8. Apply the specified sealant to the thread of oil
pressure switch.
Specified sealant: 3M ATD Part No. 8660 or
equivalent
CAUTION
Do not start the engine within one hour after the
oil pressure switch has been installed.
9. Use the special tool Oil pressure switch wrench
(MD998054) to tighten the oil pressure switch to
the specified torque.
Tightening torque:
<4G1> 19 ± 3 N⋅m (14 ± 2 ft-lb)
<4G6> 10 ± 2 N⋅m (87 ± 17 ft-lb)
10.Install the oil pressure switch terminal.
AKX00294
MD998054
AD
AKX00295AD
AKX00294
MD998054
AD

13-1
GROUP 13
FUEL
CONTENTS
MULTIPORT FUEL INJECTION (MPI) <4G1> . . . . . . . . . . . . . .13A
MULTIPORT FUEL INJECTION (MPI) <4G6> . . . . . . . . . . . . . .13B
FUEL SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13C

NOTES

14-1
GROUP 14
ENGINE COOLING
CONTENTS
GENERAL INFORMATION . . . . . . . .14-2
SERVICE SPECIFICATIONS . . . . . . .14-2
LUBRICANT . . . . . . . . . . . . . . . . . . . .14-2
SEALANTS . . . . . . . . . . . . . . . . . . . .14-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .14-3
TROUBLESHOOTING . . . . . . . . . . . .14-5
INSPECTION CHART FOR TROUBLE
SYMPTOMS . . . . . . . . . . . . . . . . . . . . . . . . 14-5
INSPECTION PROCEDURE FOR
TROUBLE SYMPTOMS . . . . . . . . . . . . . . . 14-6
ON-VEHICLE SERVICE . . . . . . . . . . .14-22
ENGINE COOLANT LEAK CHECK . . . . . . 14-22
RADIATOR CAP VALVE OPENING
PRESSURE CHECK . . . . . . . . . . . . . . . . . . 14-22
ENGINE COOLANT REPLACEMENT . . . . 14-22
CONCENTRATION MEASUREMENT . . . . 14-23COOLING FAN MOTOR DRIVE CONTROL
UNIT CHECK . . . . . . . . . . . . . . . . . . . . . . . . 14-23
FAN CONTROL RELAY CONTINUITY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-24
COOLING FAN MOTOR CHECK . . . . . . . . 14-25
THERMOSTAT . . . . . . . . . . . . . . . . . .14-26
REMOVAL AND INSTALLATION . . . . . . . . 14-26
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 14-27
WATER PUMP . . . . . . . . . . . . . . . . . .14-29
REMOVAL AND INSTALLATION <4G1> . . 14-29
REMOVAL AND INSTALLATION <4G6> . . 14-30
WATER HOSE AND WATER PIPE . .14-31
REMOVAL AND INSTALLATION <4G1> . . 14-31
REMOVAL AND INSTALLATION <4G6> . . 14-33
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 14-34
RADIATOR . . . . . . . . . . . . . . . . . . . . .14-35
REMOVAL AND INSTALLATION . . . . . . . . 14-35

GENERAL INFORMATION
ENGINE COOLING14-2
GENERAL INFORMATION
M1141000100371The cooling system is designed to keep every part of
the engine at appropriate temperature in whatever
condition the engine may be operated. The cooling
method is of the water-cooled, pressure forced
circulation type in which the water pump pressurizes
coolant and circulates it throughout the engine. If the
coolant temperature exceeds the prescribed temperature, the thermostat opens to circulate the
coolant through the radiator as well so that the heat
absorbed by the coolant may be radiated into the air.
The water pump is of the centrifugal type and is
driven by the alternator drive belt from the
crankshaft. The radiator is the corrugated fin, down
flow type.
SERVICE SPECIFICATIONS
M1141000300416
LUBRICANT
M1141000400338
ItemSpecification
Radiator Performance kJ/h 4G13 Standard vehicles 137,720
Vehicles with capacity up radiator
(option)161,288
4G18 Standard vehicles 161,288
Vehicles with capacity up radiator
(option)181,800
4G63 181,800
A/T oil cooler Performance kJ/h 5,651
Item Standard value Limit
High-pressure valve opening pressure of radiator cap kPa 93 − 123 Minimum 83
Range of coolant antifreeze concentration of radiator % 30 − 60 -
Thermostat Valve opening temperature of
thermostat °C4G1 88 ± 1.5 -
4G6 82 ± 1.5 -
Full-opening temperature of
thermostat °C4G1 100 -
4G6 95 -
Valve lift mm 8.5 or more -
Item Specified coolant Quantity L
Engine coolant (including
condense tank)DIAQUEEN SUPER LONG LIFE COOLANT
or an equivalent4G1 5.0
4G6 7.0

SEALANTS
ENGINE COOLING14-3
SEALANTS
M1141000500324
SPECIAL TOOLS
M1141000600246
Item Specified sealant
Cylinder block drain plug 3M Nut Locking Part No.4171 or equivalent
Water pump <4G1>, Thermostat case
<4G6>, Cooling water outlet hose fitting
<4G6>MITSUBISHI GENUINE Part No.MD970389 or equivalent
Tool Number Name Use
MB991502 MUT-II sub assembly Reading diagnosis code
B991502

SPECIAL TOOLS
ENGINE COOLING14-4
MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826MUT-III sub assembly
A: Vehicle
communication
interface (V.C.I.)
B: MUT-III USB cable
C: MUT-III main
harness A (Vehicles
with CAN
communication
system)
D: MUT-III main
harness B (Vehicles
without CAN
communication
system)
E: MUT-III
measurement
adapter
F: MUT-III trigger
harnessChecking the A/T
(Diagnosis display using the
MUT-III) Tool Number Name Use
MB991910
MB991826
MB991955
MB991911
MB991824
MB991827
MB991825
A
B
C
D
E
F
DO NOT USE

TROUBLESHOOTING
ENGINE COOLING14-5
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE
SYMPTOMS
M1141005600360
MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222 Harness set
A: Test harness
B: LED harness
C: LED harness
adapter
D: ProbeMaking voltage and
resistance measurement
during troubleshooting
A: Connector pin contact
pressure inspection
B: Power circuit inspection
C: Power circuit inspection
D: Commercial tester
connection
MB991871 LLC changer Coolant refilling Tool Number Name Use
MB991223
A
B
C
D
AC
MB991871
Trouble symptom Inspection
procedure No.Reference page
Cooling fan (L.H.) and Cooling fan (R.H.) <4G1 (Vehicles with
A/C)> or A/C condenser fan <4G6> do not operate 1
P.14-6
Cooling fan (L.H.) and Cooling fan (R.H.) <4G1 (Vehicles with
A/C)> or A/C condenser fan <4G6> do not change speed or stop2
P.14-16
Cooling fan (L.H.) does not operate {When cooling fan (R.H.)
<4G1> or A/C condenser fan <4G6> operate} <Vehicles with A/C>3
P.14-20
Cooling fan (R.H.) <4G1> or A/C condenser fan <4G6> does not
operate {When cooling fan (L.H.) operate} <Vehicles with A/C>4
P.14-21

TROUBLESHOOTING
ENGINE COOLING14-6
INSPECTION PROCEDURE FOR
TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1: Cooling Fan (L.H.) and Cooling Fan (R.H.) <4G1 (Vehicles with A/C)> or
A/C Condenser Fan <4G6> do not Operate
Wire colour code
B : Black LG : Light green
G : Green L : Blue
W : White Y : Yellow
SB : Sky blue BR : Brown
O : Orange GR : Gray
R : Red P : Pink V : Violet
FAN CONTROL
RELAY
A-09XENGINE CONTROL
RELAY
B-16X
AC303577
A-18-1
COOLING FAN
MOTOR (L.H.) COOLING FAN
MOTOR (R.H.)
<4G1 (VEHICLES
WITH A/C>
OR
A/C CONDENSER
FAN MOTOR <4G6>A-18-2 A-18
COOLING FAN
MOTOR DRIVE
CONTROL UNIT1 A-13 <LHD>
12 C-111 <RHD> ENGINE-ECU <M/T> OR
ENGINE-A/T-ECU <A/T>
21 C-123 <M/T>
18 C-122 <A/T>
615
121179
810234
(MU802322) (MU801824)
C-123
(MU803784)C-122
(MU802611)A-13
C-111L
L
2
2211
1B L2
3 4 B-W FUSIBLE
LINK No.2
B3 1 R-Y R-Y
8 A-13 <LHD>
11 C-111 <RHD>
615
121179
810234
(MU802611)
J/C (6)
C-12 <LHD>
C-134 <RHD> R-Y
3328
A-13
C-111
Cooling Fan (L.H.) and Cooling Fan (R.H.) or A/C Condenser Fan Drive Circut
AB