engine MITSUBISHI ENDEAVOR 2004 Service Repair Manual

STEP 1. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
YES: Go to Step 2.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR
BLEEDING
). Then
go to Ste
p 4 .

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

NO: The procedure is complete.
INSPECTION PROCEDURE 9: VIBRATION DIAGNOSIS
STEP 1. Check the tires for out-of-balance.
Q: Is the check result OK?
YES: Go to Step 2.
NO: Balance the tires (Refer to WHEEL BALANCE ACCURACY
).
Then go to Step 4 .
STEP 2. Check the fluid level.
1. Park the vehicle on a flat, level surface, and then start the engine.
2. Turn the steering wheel several times to raise the temperature of the fluid
to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right
several times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is
running.
Q: Is the check result OK?
YES: Go to Step 3.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR
BLEEDING
). Then go to Step 4 .
NOTE: A slight vibration may be felt when the stationary steering
effort is made due to the condition of the road surface. To
check whether the vibration actually exists or not, test-drive
the vehicle on a dry concrete or asphalt surface. A very
slight amount of vibration is not a malfunction.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

STEERING WHEEL FREE PLAY CHEC
K
1. With the engine running (hydraulic operation), set the front wheels straight
ahead.
2. Slightly move the steering wheel in both directions and measure the play on the
steering wheel circumference before the wheels start to move.
Limit: 30 mm (1.2 inch)
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

wheel circumference and check the play.
Standard value (steering wheel play with the engine stopped): 10 mm (0.4
inch) or less
5. If the play exceeds the standard value, remove the steering gear (Refer to
POWER STEERING GEAR BOX AND LINKAGE
.) and check the total
pinion torque (Refer to STEERING GEAR TOTAL PINION TORQUE
CHECK
.).
STEERING ANGLE CHECK 1. Place the front wheel on a turnin
g radius
gauge an
d measure the steerin
g an
gle.
CAUTION: On vehicles with ASC, if the steering angle is
adjusted, always carry out steering wheel sensor
calibration (Refer to STEERING WHEEL SENSOR
CALIBRATION
). This is necessary because the
TCL/ASC-ECU should update the steering neutral
point.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

the straight ahead position.
2. Start the engine and allow to idle.
Standard value: 700 +/- 100 r/min
3. Attach a spring scale 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 1.5 turns). Also check to
be sure that there is no significant change in the required steering effort.
Standard value:
Steering effort: 30 N (6.7 lb.) or less
Fluctuation allowance: 5.9 N (1.33 lb.) or less
4. If the measured value exceeds the standard value, refer to INSPECTION PROCEDURE 2: DIFFICULT STEERING WHEEL OPERATION (INSUFFICIENT POWER ASSIST)
.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

1. Park the vehicle on a flat, level surface.
2. Start the engine, and then turn the steering wheel several times to raise the
temperature of the fluid to approximately 50 - 60°C (122 - 140°F).
3. With the engine running, turn the wheel all the way to the left and right several
times.
4. Check the fluid in the oil reservoir for foaming or milkiness. Check the
difference of the fluid level when the engine is stopped, and while it is running.
If the fluid contains air or has milky appearance, or the fluid level fluctuate by
5 mm (0.2 inch) or more, power steering system air bleeding should be done.
Refer to POWER STEERING SYSTEM AIR BLEEDING
.
Fig. 22: Checking Fluid Level

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
FLUID REPLACEMENT
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

Perform air bleeding procedure as necessary after replacing the steering gear, oil
pump or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to IGNITION COIL
).
3. Turn the steering wheel all the way to the left and right five or six times while
using the starter motor to crank the engine intermittently several times (for 15
to 20 seconds).
4. Connect the ignition coil connectors (Refer to IGNITION COIL
).
5. Start the engine and allow to idle.
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.
9. Confirm that the change in the fluid level is no more than 5 mm (0.2 inch)
when the en
gine is sto
pped.
CAUTION: Perform air bleeding only while cranking the
engine. Do not perform air bleeding while the
en
gine is runnin
g. If
you do so, air in the fluid will
be increased and air bleeding will become more
difficult. During air bleeding, refill the steering
fluid so that the level never falls below the lower
mark on the dipstick.
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 reduce
the life of the power steering components.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

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 700 +/- 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. Open it
again immediately after checking the pressure.
Standard value: 9.3 - 9.8 MPa (1,349 - 1,421 psi)
CAUTION: The pressure gauge shut-off valve must not
remain closed for more than 10 seconds.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

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: 18 - 2.4 MPa (261 - 348 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: 0.8 - 2.4 MPa (116 - 348 psi)
7. Remove the special tools MB991548, MB990662 and MB991549, and then
tighten the pressure tube flare nut to the specified torque.
Tightening torque: 15 +/- 3 N.m (11 +/- 2 ft-lb)
8. Bleed the system. (Refer to POWER STEERING SYSTEM AIR BLEEDING
).

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

Fig. 40: Removing & Installing Power Steering Gear Box And Linkage (1 Of 2)Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.
tightened, and then fully tightened after placing the
vehicle horizontally and loading the full weight of the
engine on the vehicle body.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor