MITSUBISHI ENDEAVOR 2004 Service Repair Manual

YES: Go to Step 4.
NO: Bleed the air (Refer to POWER STEERING SYSTEM AIR BLEEDING
). Then go to Step 9 .
Fig. 4: Checking Fluid Level (Difficult Steering Wheel Operation)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 4. Check each hose for crushing or twisting.
Q: Is any hose crushed or twisted?
YES: Re
pair or re
place the hose. Then
go to Ste
p 9 .

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

NO: Go to Step 5.
STEP 5. Check for oil leaks.
Q: Are there oil leaks?
YES: Find the cause of the oil leakage and repair it. Then go to Step 9 .
NO: Go to Step 6.
STEP 6. Check the wheel alignment (camber and caster).
Refer to FRONT WHEEL ALIGNMENT CHECK AND ADJUSTMENT
.
Q: Is the alignment incorrect?
YES: Adjust alignment. Then go to Step 9 .
NO: Go to Step 7.
STEP 7. Check the gear box rack piston seal for damage.
Q: Is there damage?
YES: Replace it. Then go to Step 9 .
NO: Go to Step 8.
STEP 8. Check for excessive tie rod end ball joint breakaway torque.
Refer to TIE ROD END BALL JOINT BREAKAWAY TORQUE
CHECK
.
Q: Is the breakaway torque out of specification?
YES: Replace the tie rod end. Then go to Step 9.
NO: Go to Step 9.
STEP 9. Check the steering wheel operation.
Verify that the steering wheel operation is not difficult.
Q: Is the steering wheel operation difficult?

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 3: RATTLING NOISE DIAGNOSIS
STEP 1. Check for proper oil pump and steering gear installation.
Q: Is the oil pump and the steering gear installation correct?
YES: Go to Step 2.
NO: Repair it. Then go to Step 4 .
STEP 2. Check for interference of other parts with the steering column
and the power steering hoses.
Q: Is there interference?
YES: Correct the interference. Then go to Step 4 .
NO: Go to Step 3.
STEP 3. Check for noise from inside the oil pump or the steering gear.
Q: Is there noise?
YES: Replace the part. Then go to Step 4.
NO: Go to Step 4.
STEP 4. Check for rattling noise.
Confirm that no noise is generated.
Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 4: SHRILL NOISE DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

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 3.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

Fig. 5: Checking Fluid Level (Shrill Noise)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 2. Check for seizure in the oil pump.
Q: Is there seizure?
YES: Replace the part. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Confirm that no noise is generated.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 5: SQUEALING NOISE DIAGNOSIS
STEP 1. Check the drive belt tension.
Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
Q: Is the drive belt tension incorrect?
YES: Adjust the belt tension. (Refer to 7. DRIVE BELTS (FOR
GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
). Then go to Step 3 .
NO: Go to Step 2.
STEP 2. Check for seizure in the oil pump.
Q: Is there seizure?
YES: Replace the part. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Confirm that no noise is generated.
Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 6: HISSING NOISE DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

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

Fig. 6: Checking Fluid Level (Hissing Noise)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
STEP 2. Check each hose for crushing or twisting.
Q: Is any hose crushed or twisted?
YES: Repair or replace the hose. Then go to Step 4 .
NO: Go to Step 3.
STEP 3. Check the steering gear for damage.
Q: Is there damage?

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

YES: Repair or replace the part. Then go to Step 4.
NO: Go to Step 4.
STEP 4. Retest the system.
Confirm that no noise is generated.
Q: Is there noise?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 7: DRONING NOISE DIAGNOSIS
STEP 1. Check the oil pump or oil pump bracket installation.
Q: Is the oil pump or the oil pump bracket installation correct?
YES: Go to Step 2.
NO: Repair it. Then go to Step 3 .
STEP 2. Check the oil pump for damage.
Q: Is there damage?
YES: Replace the oil pump. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Confirm that no noise is generated.
Q: Is there noise?
NOTE: If a slight "beat noise" is produced by the oil pump when
the steering wheel is turned fully and held in that position,
this is normal.
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 8: SQUEAKING NOISE DIAGNOSIS
STEP 1. Check for interference of the wheel and the vehicle body.
If interfering, adjust the steering angle.
1. Place the front wheel on a turning radius gauge and measure the steering
angle.

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor