Engine oil pump MITSUBISHI LANCER EVOLUTION 2007 Service Service Manual

ENGINE ELECTRICAL -Ignition System16-36
12
3
8.8±1.0 N·m
4 5
6 7
8.8±1.0 N·m49±9 N·m
49±9 N·m40±5 N·m 12±2 N·m
22±4 N·m
22±4 N·m
12±2 N·m
22±4 N·m
Removal steps
1. Power steering oil pressure switch
connector
2. Heat protector
AA"3. Power steering oil pump, bracket and
oil reservoir assembly4. Power steering oil pump bracket
5. Crank angle sensor connector
6. Crank angle sensor
7. Connector bracket
REMOVAL SERVICE POINT
AA"POWER STEERING OIL PUMP, BRACKET AND
OIL RESERVOIR ASSEMBLY REMOVAL
Remove the power steering oil pump, bracket and oil reservoir
assembly with the hose attached from the bracket.
NOTE
Tie the removed oil pump with a rope and set aside where
they cannot hinder the removal of the power steering oil pump
bracket.

ENGINE AND EMISSION CONTROL -Emission Control System17-5
SERVICE SPECIFICATIONS
ItemsStandard value
Purge control solenoid valve coil resistance (at 20_C)Ω30 - 34
EGR control solenoid valve coil resistance (at 20_C)Ω29 - 35
VACUUM HOSE
VACUUM HOSE PIPING DIAGRAM
Fuel
pressure
control
solenoid
valve
Oxygen
sensor
(front)
Check
valve
Fuel
pressure
regulator
PCV valve To
fuel tank
Oxygen sensor (rear) From
fuel pump
Air
inletEGR control
solenoid valve
Purge
control
solenoid
valveCanisterFrom
fuel tank
EGR
valve Injector
Three - way
catalytic converter A
P
E

MANUAL TRANSMISSION - Troubleshooting 22A-36
Item
no.Normal conditions Check condition Check item
19Pressure sensor power
supplyIgnition switch: ONApprox.5 V
20Valve power supplyIgnition switch: ONSystem voltage
21Steering wheel sensor
voltage Ignition switch: ONSteering wheel: Turn1 - 2 V and 2.5 - 4.5 V
are displayed alter-
nately.
22Steering wheel sensor
voltage Ignition switch: ONSteering wheel: Turn1 - 2 V and 2.5 - 4.5 V
are displayed alter-
nately.
23Steering wheel sensor
ltSTN
Ignition switch: ONSteering wheel: Neutral1-2Vg
voltage
g
Steering wheel: Turn2.5 - 4.5 V
51Idle switchIgnition switch: ONAccelerator pedal: Full
closedON
Accelerator pedal: PressOFF
52Steering wheel sensor
STN
Ignition switch: ONsteering wheel: NeutralONg

g
Steering wheel: Turn from
the neutral positionOFF
53Steering wheel sensor
Ignition switch: ONSteering wheel: Turn slowlyON and OFF are dis-
played alternaltely.
54Steering wheel sensor
Ignition switch: ONSteering wheel: Turn slowlyON and OFF are dis-
played alternately
55Steering wheel sensor
learning Perform actual drivingSteering wheel sensor neu-
tral position learning exe-
cutedON
Steering wheel sensor neu-
tral position learning unex-
ecutedOFF
56Stop lamp switchIgnition switch: ONBrake pedal: DepressONppg
Engine: StoppedBrake pedal: ReleaseOFF
57Motor monitorElectric pump motor is currently operatingON
Electric pump motor is currently not operatingOFF
58Oil pressure stateElectric pump motor is currently operatingLOWp
Electric pump motor is currently not operatingHIGH
59Directional valve
Ri ht
AYC clutch right side is currently operatingON
AYC clutch right side is currently not operatingOFF
60Directional valve
Lft
AYC clutch left side is currently operatingON
AYC clutch left side is currently not operatingOFF
61ABS monitorABS is currently operatingON
ABS is currently not operatingOFF
62Parking brake switchIgnition switch: ONParking brake lever: PullONgg
Engine:StoppedParking brake lever: Re-
leaseOFF
63ACD mode switchIgnition switch: ONACD mode switch: PressONg
Engine:StoppedACD mode switch: ReleaseOFF

MANUAL TRANSMISSION - On-vehicle Service22A-42
BLEEDING VEHICLES WITH ACD AND AYC>
1. Lift up the vehicle.
2. Set the MUT-IIto the 16-pin diagnosis connector.
Caution
Turn the ignition switch to the “LOCK”(OFF) position
before connecting or disconnecting the MUT-II.
3. Turn the ignition switch to the “ON” position.
4. Set the steering wheel in the straight-ahead position.
5. Perform the MUT-IIactuator test (Item No.02), and forcibly
drive the hydraulic unit.
NOTE
(1) The actuator test (Item No.01: Bleeding Mode) will
be performed for 5 minutes, after which it will be
cleared automatically. Drive can also be cleared during
forced driving using the clear key of the MUT-II.
(2) If the hydraulic unit function has been stopped by
fail-safe, the hydraulic unit cannot be forcibly driven.
6. Remove the cap of the bleeder screw on the transfer,
and connect the vinyl hose.
7
.Slowly turn the steering wheel to the left or right from
the neutral state. Loosen the bleeder screw, and check
that air is discharged together with the fluid.
8
.After the air is discharged, tighten the bleeder screw,
and return the steering wheel to the neutral state.
Caution
During bleeding, replenish the fluid so that some
always remains in the oil reservoir.
9. Repeat steps 6 and 7 several 2 to 3 times, and after
checking that no more air mixes in, tighten the bleeder
screw at the specified torque.
Tightening torque: 5±1 N·m
10. After bleeding, check the fluid level. (Refer to P. 22A-41.)
Caution
If bleeding is not performed completely, noise may
be produced from the hydraulic unit, or the durability
of the pump, etc. may drop.
11. On vehicles with AYC, perform bleeding when the
hydraulic unit is removed. (Refer to GROUP 27B -
On-vehicle Service.)
ACD OPERATION CHECK ACD OR VEHICLES WITH ACD AND AYC>
1. Lift up the vehicle.
2
.Set the MUT-IIto the 16-pin diagnosis connector.
Caution
Turn the ignition switch to the “LOCK”(OFF) position
before connecting or disconnecting the MUT-II.
3. Start the engine.
Bleeder screw
Front exhaust pipe

REAR AXLE -On-vehicle Service27B-20
6. Remove the cap of the left bleeder screw on the torque
transfer differential and connect a vinyl hose.
7. Gradually turn the steering wheel clockwise from the
straight-ahead position. At this time, loosen the left bleeder
screw and check that fluid is discharged with air.
8. After air has been completely discharged, tighten bleeder
screw and turn the steering wheel in the straight-ahead
position.
Caution
While the system is being bled of air, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
9. Repeat steps 6 and 7 two to three times until no air
bubbles are recognized in the fluid that comes out. Then,
tighten the bleeder screw to the specified torque.
Tightening torque: 9±1 N·m
10. Perform steps 5 through 8 for the right bleeder screw.
Note, however, that the steering wheel should be turned
conterclockwise.
11. When removing the hydraulic unit, bleed the fluid line
in ACD side. (Refer to GROUP 22 – On-vehicle Service.)
12. After the system has been completely bled of air, check
for the fluid level. (Refer to P. 27B-19.)
Caution
If the system is not completely bled of air, the hydraulic
unit could generate noise, degrading pump durability.
AYC OPERATION CHECK
1. Lift up the vehicles.
2. Set the MUT-IIto the 16-pin diagnosis connector.
Caution
Turn the ignition switch to the LOCK (OFF) position
before connecting or disconnecting the MUT-II.
3. Start the engine.
4. Set the gear to the 2nd gear or above, operate MUT-II,
and check from the service data (Item No.09) that the
wheel speed is within 10 km/h to 20 km/h.
NOTE
(1) Set the steering wheel to the neutral position.
(2) When turning the steering wheel, AYC operates
continually (operation sound from the torque transfer
differential), but it is not system fault. In this case,
set the steering wheel to the neutral position, and
perform the following operations in order to stop the
ACD.
DRelease the clutch.
DSet the gear to ”Neutral”.
DStop the engine.
Bleeder
screw
Vinyl hose

STEERING -General Information37A-2
GENERAL INFORMATION
The system has been equipped with the MOMO
leather 3-spoke-type steering wheel with built-in
SRS airbag.
The steering column is equipped with tilt steering
mechanism.
The power steering is an integral rack and piniontype that combines the steering gear and linkage
into one light-weight and compact assembly.
The steering system uses a vane oil pump with
a fluid flow control system, so that steering effort
varies with engine speed.
ItemLancer EVOLUTION-
Steering wheelTypeMOMO 3-spoke typeg
Outside diameter mm380 ,
365
Maximum number of turns2.1
Steering columnColumn mechanismTilt steering
Power steering typeIntegral type
Oil pumpTypeVariable capacity type (vane pump)pp
Basic discharge amount cm3/rev.9.6
Relief pressure MPa8.3 - 9.0
Reservoir typeSeparate type
Pressure switchEquipped
Steering gear and linkageTypeRack and pinionggg
Stroke ratio (Rack stroke/Steering wheel
Maximum turning radius)68.61
Rack stroke mm146
Steering angleInner wheel32°gg
Outer wheel (for reference)27°
Power steering fluidSpecified lubricantsAutomatic transmission fluid DEXRON IIg
Quantity LApproximately 1.0

STEERING -Service Specifications/Lubricants/Sealant/Special Tools37A-4
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
Steering wheel free play mmwhen engine running-30 or less
with engine stopped0-10-
Steering angleInner wheel31_45’±1_30’-
Outer wheel 27_15’-
Ball joint turning torque N·m1.0 - 3.0-
Stationary steering effort NSteering effort32 or less-
Fluctuation allowance6.0 or less-
Oil pump relief pressure MPa8.4 - 9.0-
Pressure under no-load conditions MPa0.2 - 0.8-
Steering gear retention hydraulic pressure MPa8.4 - 9.0-
Oil pressure switch operating
pressureMPa
OFF→ON1.8 - 2.4-
pressure MPaON→OFF1.0 - 2.4-
Total pinion torque N·mTotal rotation torque0.8 - 1.8-
Torque variation0.49 or less-
Tie rod joint swing resistance N (Tie rod joint swing torque N·m)8 - 27 (1.5 - 4.9)-
Opening dimension of special tool (MB991561) mm2.9-
Band crimped width mm2.4 - 2.8-
LUBRICANTS
ItemsSpecified lubricantQuantity
Power steering fluidAutomatic transmission fluid DEXRONIIApprox. 1.0 L
Tie rod bellowsSilicone greaseAs required
Pinion and valve assemblyRepair kit greaseAs required
Rack assembly
SEALANT
ItemsSpecified sealantRemarks
Toe boad (steering shaft cover
mounting bolt hole)3M ATD Part No. 8513 or equivalentDrying sealant
Rack support cover end plug3M ATD Part No. 8661, 8663 or equivalentSemi-drying sealant
SPECIAL TOOLS
ToolNumberNameUse
MB990635,
MB991113 or
MB991406Steering linkage
pullerDisconnection of tie rod end

STEERING -On-vehicle Service37A-8
2. Move ball joint stud several times and install nut on stud.
Measure ball joint turning torque with special tool.
Standard value: 1.0 - 3.0 N·m
3. When the turning torque exceeds the standard value,
replace tie rod end.
4. When the turning torque is under the standard value,
check ball joint for end play or ratcheting. If none of these,
the joint is still serviceable.
STATIONARY STEERING EFFORT CHECK
1. With the vehicle stopped on a flat, paved surface, turn
the steering wheel to the straight ahead position.
2. Start the engine and set it to 1,000±100 r/min.
3. Attach a spring balance to the outer circumference of
the steering wheel and measure the steering force
required to turn the steering wheel from the straight ahead
position to the left and right (within a range of 0.9 turns).
Also check to be sure that there is no significant fluctuation
of the required steering force.
Standard value:
Steering effort32 N or less
Fluctuation allowance6.0 N or less
4. If the standard values are not met, check and adjust
the related parts.
CHECKING STEERING WHEEL RETURN TO
CENTRE
To make this test, conduct a road test and check as follows.
1. Make both gradual and sudden turns and check the
steering “feeling” to be sure that there is not difference
in the steering force required and the wheel return between
left and right turns.
2. At a speed of 35 km/h, turn the steering wheel 90_and
release the steering wheel after 1 or 2 seconds. If the
steering wheel then returns 70_or more, the return can
be judged to be satisfactory.
NOTE
There will be a momentary feeling or “heaviness” when
the wheel is turned quickly, but this is not abnormal. (This
is because the oil pump discharge amount is especially
apt to be insufficient during idling.)
DRIVE BELT TENSION CHECK
Refer to GROUP 11A - On-vehicle Service.
MB990326
70_70_

STEERING -On-vehicle Service37A-10
9. If the level changes more than 5 mm, the air is badly
bled. So, bleed air again.
Caution
(1) If the fluid level rises suddenly after the engine
is stopped, the bleeding is incomplete.
(2) Incomplete bleeding causes abnormal noises
from the pump and the flow-control valve. This
could lessen the life of the pump and the other
parts.
OIL PUMP PRESSURE TEST
1. Disconnect the pressure hose from the oil pump, and
then connect the special tools.
2. Bleed the air, and then turn the steering wheel several
times while the vehicle is not moving so that the
temperature of the fluid rises to approximately 50 - 60_C.
3. Start the engine and idle it at 1,000±100 r/min.
4. Fully close the shut-off valve of the pressure gauge and
measure the oil pump relief pressure to confirm that it
is within the standard value range.
Standard value: 8.4 - 9.0 MPa
5. If the standard value is not met, the oil pump is defective.
So, replace the oil pump. Then, measure oil pressure
again.
6. With the pressure gauge shut - off valve fully open, check
the hydraulic pressure in unladen condition.
Standard value: 0.2 - 0.8 MPa
7. If the standard value is not met, the oil line or steering
gear is probably defective. So, repair and measure oil
pressure again.
8. Turn the steering wheel fully either left or right and check
the retention hydraulic pressure.
Standard value: 8.4 - 9.0 MPa
9. If the pressure is below the standard value, disassemble
and reassemble the steering gear. If above, replace the
oil pump. Then, measure oil pressure again.
10. Remove the special tools, and tighten the pressure hose
to the specified torque.
Tightening torque: 18±3 N·m
11. Bleed the system.
Fluid level change: Within 5 mm
While engine
runningWhile engine
stopped
Temperature
gaugePressure
gauge
(MB990662)Shut-off valve
Oil
pumpOil reservoir
Adapter
(MB990994)
Adapter
(MB990993)

STEERING -On-vehicle Service37A-11
POWER STEERING OIL PRESSURE SWITCH
CHECK
1. Disconnect the pressure hose from the oil pump, and
then connect the special tools.
2. Bleed the air, and then turn the steering wheel several
times while the vehicle is not moving so that the
temperature of the fluid rises to approximately 50 - 60_C.
3. The engine should be idling.
4. Disconnect the connection of the connector for the oil
pressure switch, and set an ohmmeter in position.
5. Gradually close the shut-off valve of the pressure gauge
and increase the hydraulic pressure, then check whether
or not the hydraulic pressure that activates the switch
is the standard value.
Standard value: 1.8 - 2.4 MPa
6. Gradually open the shut-off valve and reduce the hydraulic
pressure; then check whether or not the hydraulic pressure
that deactivates the switch is the standard value.
Standard value: 1.0 - 2.4 MPa
7. Remove the special tools, and then tighten the pressure
hose to the specified torque.
Tightening torque: 18±3 N·m
8. Bleed the system.
BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing
it with finger.
2. If the dust cover is cracked or damaged, replace the
tie rod end.
NOTE
Cracks or damage of the dust cover may cause damage
of the ball joint.
Temperature
gaugeShut-off valve
Oil
pump
ReservoirAdapter
(MB990993)Pressure
gauge
(MB990662)
Adapter
(MB990994)