Mitsubishi Outlander GS45X. Manual — part 1566

ON-VEHICLE SERVICE

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POWER STEERING

37-27

4. Connect the all of the injector connectors.
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 the high and low dipstick 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 abnormal noises from the pump
and the flow-control valve, and this condition could cause
reduce the life of the power steering components.
9. Confirm that the change in the fluid level is no more than 5

mm (0.2 inch) when the engine is stopped and when it is
running.

10.If the change of the fluid level is 5 mm (0.2 inch) or more,

the air has not been completely bled from the system. The
air bleeding procedure must be repeated.

11.Use scan tool to check if the diagnostic trouble code is set. If

the diagnostic trouble code is set, erase it.

AC608306

With engine stopped

AC

Fluid level change: Within 5 mm (0.2 in)

With engine running

AC505420 AF

M.U.T.-III main harness A

V. C. I.

USB cable

Diagnosis connector

ON-VEHICLE SERVICE

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POWER STEERING

37-28

OIL PUMP PRESSURE TEST

M1372002301073

Required Special Tools:

• MB990662: Power Steering Oil Pressure Gauge

• MB991548: Oil Pressure Gauge Adapter A (Pump Side)

• MB991549: Oil Pressure Gauge Adapter B (Hose Side)

1. Disconnect the pressure hose from the oil pump, and then

connect special tools MB991548, MB990662 and
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 (122 − 140°F).

3. Start the engine and idle it at 650

± 100 r/min <2.4L>, 600 ±

100 r/min <3.0L>.

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 (1,276 − 1,378 psi)

5. If it is not within the standard value, replace the oil pump.
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 (29 − 102 psi)

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 (1,276 − 1,378 psi)

9. If not the standard value, overhaul the steering gear.

Remeasure fluid pressure.

10. Remove the special tools power steering oil pressure

gauge adapter MB991548, MB990662 and MB991549, and
then tighten the pressure hose to the specified torque.

Tightening torque: 57

± 7 N⋅m (42 ± 5 ft-lb)

11. Bleed the system (Refer to

P.37-25

).

AC609397AC

Temperature

Oil reservoir

Power steering oil
pressure gauge
(MB990662)

Shut-off valve

Oil
pump

Oil pressure
gaige adapter B
(MB991549)

Oil pressure
gauge
adapter A
(MB991548)

ON-VEHICLE SERVICE

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POWER STEERING

37-29

POWER STEERING PRESSURE SWITCH CHECK

M1372007200788

Required Special Tools:

• Oil pressure gauge adapter A (pump side) (MB991548)

• Oil pressure gauge adapter B (hose side) (MB991549)

• Power steering oil pressure gauge (MB990662)

1. Disconnect the pressure hose from the oil pump, and then

connect special tools MB991548, MB990662 and
MB991549.

2. Bleed 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 (122 − 140°F).

3. The engine should be idling.
4. Disconnect the connector for the oil pressure switch, and

place an ohmmeter at the switch.

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: 1.5

− 2.0 MPa (218 − 290 psi)

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: 0.5

− 2.0 MPa (73 − 290 psi)

7. Remove the special tools, and then tighten the pressure

hose to the specified torque.

Tightening torque: 57

± 7 N⋅m (42 ± 5 ft-lb)

8. Bleed the system (Refer to

P.37-25

).

INSPECTION OF STEERING COLUMN SHAFT
ASSEMBLY IMPACT ABSORBING MECHANISM

M1372013500658

If a collision accident occurs or severe impact is applied on the
steering wheel, the collision energy absorbing mechanism may
have operated. Once the mechanism has operated, it will be
inoperative even it has suffered no apparent damage. Deter-
mine if the steering column shaft can be reused by the following
procedure. If the collision energy absorbing mechanism has
already operated, replace the steering column shaft assembly.
If any excessive radial free play on the steering wheel is found
with the tilt lever in the lock position, always replace the steer-
ing shaft assembly.

AC604168 AC

Shut-off
valve

Temperature
gauge

Oil
pump

Oil reservoir

Power steering
oil pressure gauge
(MB990662)

Oil pressure
gauge adapter A
(MB991548)

Oil pressure
gauge adapter B
(MB991549)

ON-VEHICLE SERVICE

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POWER STEERING

37-30

WARNING

•

If the vehicle continues to be driven after the colli-
sion absorbing mechanism has operated, the
steering column shaft may be damaged while it is
in use.

•

If there is a slack in the one-way capsule, do not
attempt to repair it but replace the steering column
shaft assembly.

INSPECTION PROCEDURE

1. Remove the ignition key cover, steering column lower cover,

steering column upper cover, WCM, bottom cover assembly
(driver's seat), side air outlet (L) and side lower panel
assembly.

CAUTION

After inspection, do not release the tilt lever until the steer-
ing shaft assembly has been installed.
2. Ensure that the tilt lever is in the lock position.
3. Loosen the two upper steering column mounting bolts by

two turns.

4. Hold the one-way capsules as shown in the figure, and then

try to rock them. If there is a slack in either of the capsules,
replace the steering column shaft assembly.

CAUTION

• Be careful that nothing is pinched between the one-way

capsules and the body.

• When the replacement, removal, or installation of the

steering column shaft assembly is performed, tighten
the mounting bolt of the one-way capsule side to the
specified torque first.

5. If no malfunction has been found after the inspection,

hand-tighten the steering column mounting bolts, and then
tighten them to the specified torque.

Tightening torque: 12

± 3 N⋅m (106 ± 26 in-lb)

AC703615AB

Steering column
mounting bolt

Tilt lever

Steering
column
assembly

One-way capsule

AC703616AB

One-way capsule