2004 MITSUBISHI ENDEAVOR diagnosis

YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 2: DIFFICULT STEERING WHEEL OPERATION (INSUFFICIENT POWER ASSIST) DIAGNOSIS
STEP 1. Check the drive belt for damage.
Q: Is the drive belt damaged?
YES: Replace the drive belt. Then go to Step 9 .
NO: Go to Step 2.
STEP 2. Check the power steering oil pump drive belt tension.
Refer to 7. DRIVE BELTS (FOR GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
.
Q: Is the power steering oil pump drive belt tension within the standard
value?
YES: Go to Step 3.
NO: Adjust the tension. (Refer to 7. DRIVE BELTS (FOR
GENERATOR, POWER STEERING OIL PUMP AND AIR CONDITIONING) (CHECK)
). Then go to Step 9 .
STEP 3. 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?

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

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

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

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

Q: Is there vibration?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 10: OIL LEAKAGE FROM HOSE CONNECTION DIAGNOSIS
STEP 1. Check for loosening of the pressure and return tube flare nut.
Q: Is the flare nut loose?
YES: Tighten it to 15 - 3 N.m (11 - 2 ft-lb). Then go to Step 3 .
NO: Go to Step 2.
STEP 2. Check the hose connection and the clamp installation.
Refer to POWER STEERING HOSES
.
Q: Are they correct?
YES: Go to Step 3.
NO: Correct hose connection and/or clamp installation. Then go to Step 3.
STEP 3. Retest the system.
Check that no oil is leaking.
Q: Is there oil leakage?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 11: OIL LEAKAGE FROM HOSE ASSEMBLY DIAGNOSIS
STEP 1. Check the hose for damage or clogging.
Q: Is the hose damaged or clogged?

2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor

YES: Repair or replace it. Then go to Step 2.
NO: Go to Step 2.
STEP 2. Retest the system.
Check that no oil is leaking.
Q: Is there oil leakage?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 12: OIL LEAKAGE FROM OIL RESERVOIR DIAGNOSIS
STEP 1. Check the oil reservoir for damage.
Q: Is there damage?
YES: Repair or replace it. Then go to Step 2.
NO: Go to Step 2.
STEP 2. Check for overflowing.
Q: Is there oil overflowing from the reservoir?
YES: Adjust fluid level. Then go to Step 3.
NO: Go to Step 3.
STEP 3. Retest the system.
Q: Is there oil leakage?
YES: Repeat from Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 13: OIL LEAKAGE FROM OIL PUMP DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 STEERING Power Steering - Endeavor