2006 MITSUBISHI LANCER low oil pressure

SERVICE SPECIFICATIONS
POWER STEERING37-6
SERVICE SPECIFICATIONS
M1372000300795
ItemStandard valueLimit
Steering wheel free
play mmWith engine running−30
With engine stopped10 or less−
Steering angleInner wheelInvite39°30' ± 1°30'−
Intense (LH drive vehicles)33°40' +1°00'/-2°00'−
Intense (RH drive vehicles)37°00' +1°00'/-2°00'−
Outer wheel
(reference)Invite32°30'−
Intense (LH drive vehicles)28°46'−
Intense (RH drive vehicles)30°00'−
Toe-inAt the centre of tyre tread mm1 ± 2−
Toe-angle (per wheel)0°03' ± 06'−
Tie rod end ball joint turning torque N⋅m0.5 − 2.5−
Tie rod swing resistance N [Tie rod swing torque N⋅m]8 − 27 [1.5 − 4.9]−
Stationary steering effort N [Fluctuation allowance N]29 or less [5.9 or less]−
Oil pump pressure
MPa (750
± 100 r/min.)
Oil pump relief pressure8.8 − 9.5−
Pressure under no-load conditions0.2 − 0.7−
Steering gear retention hydraulic pressure8.8 − 9.5−
Oil pressure switch operating pressure
MPaOFF → ON1.5 − 2.0−
ON → OFF0.7 − 2.0−
Steering gear total pinion torque N⋅m
[Change in torque N
⋅m]
Invite0.8 − 2.1 [0.6 or less]−
Intense0.7 − 2.1 [0.6 or less]−
Opening dimension of special tool boot band crimping tool (MB991561)
mm2.9−
Band crimped width mm2.4 − 2.8−

ON-VEHICLE SERVICE
POWER STEERING37-14
POWER STEERING SYSTEM AIR
BLEEDING
M1372002200330
Perform air bleeding procedure as necessary after
replacing the steering gear or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
CAUTION
Perform air bleeding only while cranking the
engine. If air bleeding is performed while the
engine is running, air could enter the fluid. Dur
-
ing air bleeding, refill the steering fluid supply so
that the level never falls below the "MIN" mark on
the oil reservoir.
3. Turn the steering wheel all the way to the left and
right five or six times wh ile using the starter motor
to crank the engine intermittently several times
(for 15 to 20 seconds).
4. Connect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
5. Start the engine (idling).
6. Turn the steering wheel to the left and right until there are no air bubbles in the oil reservoir.
7. Confirm that the fluid is not milky, and that the level is between "MAX" and "MIN" marks.
8. Confirm that there is very little change in the fluid
level when the steering wheel is turned left and
right.
CAUTION
If the fluid level rises suddenly after the engine is
stopped, the air has not been completely bled. If
air bleeding is not complete, there will be abnor
-
mal noises from the pump and the flow-control
valve, and this condition could cause reduce the
life of the power steering components.
ACX01131With engine running With engine stoppedAC
Fluid level change: Within 5 mm
9. Confirm that the change in the fluid level is no more than 5 mm when the engine is stopped and
when it is running.
10.If the change of the fluid level is 5 mm or more,
the air has not been completely bled from the
system. The air bleeding procedure must be
repeated.
OIL PUMP PRESSURE TEST
M1372002300315
ACX01133
Temperature
gauge
Oil reservoir
Adapter
(MB991548)
Oil
pump Adapter
(MB991549)
AB
Shut-off valve
(fully closed)
Pressure
gauge
(MB990662)
1. Disconnect the pressure hose from the oil pump,
and then connect the following special tools.
•Power steering oil pressure gauge (MB990662)
•Power steering oil pressure gauge adapter (pump
side) (MB991548)
•Power steering oil pressure gauge adapter (hose
side) (MB991549)
2. Bleed air, 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 750 ± 100 r/min.
CAUTION
The pressure gauge shut-off valve must not
remain closed for more than 10 seconds.
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. Open it again immediately after checking
the pressure.
Standard value: 8.8 − 9.5 MPa
5. If it is not within the standard value, replace the oil pump.

ON-VEHICLE SERVICE
POWER STEERING37-15
6. Check whether or not the hydraulic pressure is the standard value when no-load conditions are
created by fully opening the shut-off valve of the
pressure gauge.
Standard value: 0.2 − 0.7 MPa
7. If it is not within the standard value, the probable cause is a malfunction of the oil line or steering
gear, so check these parts and repair as
necessary.
8. Turn the steering wheel all the way to the left or right; then check whether or not the retention
hydraulic pressure is the standard value.
Standard value: 8.8 − 9.5 MPa
9. If not the standard value, overhaul the steering gear. Remeasure fluid pressure.
10. Remove the special tools, and then tighten the
pressure hose to the specified torque.
Tightening torque: 57 ± 7 N⋅m
11. Bleed the system (Refer to P.37-14).
POWER STEERING PRESSURE SWITCH
CHECK
M1372007200324
ACX01134 AB
Temperature
gaugeAdapter
(MB991548)
Oil reservoir Oil
pump
Adapter
(MB991549)
Shut-off valve
Pressure gauge
(MB990662)
1. Disco nnect the pre s sure hose from the oil pump ,
an d then con nect the followin g sp ecial too l s.
•Power steering oil pressure gauge (MB990 662)
•Power steering oil pressure gauge ad apter (pump
side) (MB99154
8)
•Power steering oil pressure gaug e a dapte r (ho s e
side) (MB99154
9)
2. Bleed air , and the n turn t he steering wheel several
times while the vehicle is not moving so that the
tempe r atu r e o f th e flu i d rise s to approximately 50
−
60
°C.
3. Th e engine should be idling.
4.Disco nnect the conne ctor fo r the o il pr essure
switch , and p l ace an o h mmeter a t the switch .
5.Gradua lly close the shut-of f valve of the pressure
g auge a nd in crease the hyd r aulic pre ssu re, the n
check wheth e r or no t the h y drau lic pressure that
a c tivates the switch is the st a ndard valu e.
St andard va lue: 1.5 − 2.0 MPa
6.Gradua lly open the shut-of f va lve and re duce the
h y drau lic p r essure; then check whethe r o r n o t the
h y drau lic pressure that de activate s the switch is
th e st and ard va lue.
St andard va lue: 0.7 − 2.0 MPa
7.Remove the special tools, and then tighten the
p r essure hose to the specified torque .
Ti ghte n ing torque: 57 ± 7 N⋅m
8.Bleed the system (Refer to P.37-14).
TIE ROD END BALL JOINT DUST COVER
CHECK
M13720086 0026 2
1.Press th e dust co ver wit h you r fing er to check
whet her the dust cover is cra cke d or da mage d.
2.If the du st cover is cracked o r damaged, repla c e
th e tie rod end .
NOTE: If the dust cover is cra cke d or da mag ed,
th
e ball jo int could be da mage d.
STEERING COLUMN SHAFT ASSEMBL Y
SHOCK ABSORBING MECHANISM
CHECK
M13720135 0009 0
If a collision accid ent occu rs or seve re imp a ct is
applied on
the steering w heel, the collision energy
abso
r bing mechanism ma y h a ve opera t ed. Once the
mechanism
has o perate d , it will b e ino perative e v en
it has
suf f er ed no app a r en t d a mage . De termin e if the
steering colu
mn shaf t can b e reused b y th e following
proce
dure. If the collision en ergy a b sor b ing mecha
-
nism has already operated, rep l ace the steering col-
umn shaft assembly .
If any excessive radial fre e pla y on the steering
wh
eel is fo und with the tilt lever in the lock po sit i on,
always ch
eck the steering shaf t assembly .

Removal steps
1.Pressure switch connector
2.A/C compressor harness connector
bracket
3.Drive belt
4.Suction hose
5.Eye bolt
6.O-ring
7.Pressure hose
8.Oil pump assembly
9.Oil pump brace
POWER STEERING OIL PUMP ASSEMBLY
POWER STEERING37-36
<2000>
AC200116AB
22 ± 4 N·m
12 ± 2 N·m
22 ± 4 N·m
49 ± 9 N·m 57 ± 7 N·m
1
5
4
3
6
2
7
49 ± 9 N·m
Removal steps
1.Pressure switch connector
2.Drive belt
3.Suction hose
4.Pressure hose
<>5.Oil pump assembly
6.A/C compressor harness
7.Power steering pump bracket
REMOVA L SER VICE POINT
<> OIL PUMP ASSEMBL Y REMOV A L
<2000>
With the eng ine lif t ed by the jack, remove the o il
pump
assembly mounting b o lt (lower side) a t the pul
-
ley side .
INSPECTIONM13720053 0018 7
•Check the drive belt for cracks.
•Check th e pulley for une ven r o t a tion.
Remova l st ep s ( C ont inu e d)

Removal steps
1.Oil reservoir
>>C<<2.Suction hose
>>B<<3.Return hose
•Clock spring (Refer to GROUP 52B,
Air Bag Modules and Clock Spring
P.52B-194).
•Centermember (Refer to GROUP 32,
Engine Roll Stopper Centermember
P.32-7).
•Front exhaust pipe (Refer to GROUP
15, Exhaust Pipe and Main Muffler
P.15-10).
4.Steering gear and joint connecting bolt
5.Rear roll stopper connecting bolt
<>6.Eye bolt
7.Gasket
8.Pressure hose assembly
<>9.Return tube
10.O-ring
POWE R STEERING HOSES
POWER S T E E RING37-42
REMOVA L SER V ICE POINT
<> EYE BOLT /RETURN TUBE
REMOV
A L
CAUTION
If the joint cover grommet has been removed,
install it properly as follows.
AC304922AB
A
B
Joint cover
grommet
Steering gear
Align the joint cover grommet notch (arrow A)
with the steering gear lug (arrow B), and then
install the steering joint cover to the steering
gear.
1. Loosen the crossmember mounting bolts and nuts, and lower the crossmember to a position so
that the eye bolts or return tube at the steering
gear side can be removed.
NOTE: In this case, do not remove the crossmem-
ber mounting bolts and nuts.
2. Remove the eye bolts or return tube.
INSTALLATION SERVICE POINTS
>>A<< RETURN HOSE INSTALLATION

AC100277 ABReturn hose
Install the return hose so that the marking is posi-
tioned as shown in the illustration.
>>B<< RETURN HOSE INSTALLATION
AC305132AB
Return hose
Return tubeReturn hose

Install the return hose so that the markings are posi-
tioned as shown in the illustration.
>>C<< SUCTION HOSE INSTALLATION
Install the suction hose (oil pump side) so that the
marking is positioned forward.

AC208762
A
AD
Timing belt front
upper coverTiming belt front
lower coverEngine crank
angle sensor
<4G1>
Engine crank angle
sensor connector
AC302008
A<4G6>
ABHeat protector
Crankshaft
sprocket
Engine crank angle
sensor connectorEngine crank
angle sensor
AC301752
B
AB
Ignition coil 2
<4G1>
Engine control detonation
sensor connector
Engine control
detonation sensor
AC302009
B
AB
Hydraulic unit
<4G6>
Alternator
Engine control detonation
sensor connectorEngine control
detonation sensor
AC208541
C
AE
<4G1>
Throttle body
Throttle body
throttle sensor
Inlet manifold absolute pressure sensor
(incorporating intake air temperature sensor)
AC302479
AB
C
Throttle body
<4G6>
Throttle body
throttle sensor
SENSOR
COMPONENT LOCA TIONS70-7

ENGINE AND TRANSMISSION
CONFIGURATION DIAGRAMS80-12
ENGINE AND TRANSMISSION <4G1-MPI (LHD)> (CONTINUED)
AC301129AE
B-118B-101 B-102
B-113
B-114
B-115
B-116 B-117
Earth cable
Control wiring
harness
Connector colour
code
B : Black
BR : Brown
G : Green
GR : Grey
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
-101
thru
-118
B
*
B-101(2-BR)Emission solenoid valve (EGR system)
B-102(4-GR)Inlet manifold absolu te pressure sensor
B-103(6-B)Throttle body idle speed control servo
B-104(3-GR)Ignition coil 1
B-105(2-B)Emission solenoid va lve (Purge control
system)
B-107(3-B)Camshaft position sensor
B-108(3-GR)Output shaft speed sensor
B-109(3-B)Input shaft speed sensor
B-110(2-B)Back-up lamp switch
B-111(2-B)Water temperature sensor unit

ENGINE AND TRANSMISSION
CONFIGURATION DIAGRAMS80-16
ENGINE AND TRANSMISSION <4G1-MPI (RHD)> (CONTINUED)
AC301132AE
B-117B-101 B-102
B-113
B-114
B-115
B-116
Earth cable
Control wiring
harness
Connector colour
code
B : Black
BR : Brown
G : Green
GR : Grey
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
-101
thru
-118
B
*
B-101(2-BR)Emission solenoid valve (EGR system)
B-102(4-GR)Inlet manifold absolu te pressure sensor
B-103(6-B)Throttle body idle speed control servo
B-104(3-GR)Ignition coil 1
B-105(2-B)Emission solenoid va lve (Purge control
system)
B-107(3-B)Camshaft position sensor
B-108(3-GR)Output shaft speed sensor
B-109(3-B)Input shaft speed sensor
B-110(2-B)Back-up lamp switch