Inspection Procedure 2
INSPECTION PROCEDURE 2: Constant NoiseDIAGNOSIS
STEP 1. Check the oil level.
Remove the filler plug and check the gear oil level.
Q: Is the gear oil level more than 8 mm (0.3 inch) below the bottom of the filler plug hole?
YES: Check the oil leakage from differential carrier, and repair if necessary. Then, refill Hypoid gear oil MITSUBISHI Genuine Gear Oil Part No 8149630. Then go to Step 9.
NO: Go to Step 2
STEP 2. Check the tooth contact (engagement) of the drive gear and drive pinion.
Q: Is the tooth contact (engagement) of the drive gear and drive pinion correct?
YES: Go to Step 3.
NO: Adjust or replace the part. Then go to Step 9.
STEP 3. Check the side bearing for looseness, wear or damage.
Q: Is the side bearing loose, worn or damaged?
YES: Adjust or replace the part. Then go to Step 9.
NO: Go to Step 4.
STEP 4. Check the drive pinion bearing for wear or damage.
Q: Is the drive pinion bearing worn or damaged?
YES: Adjust or replace the part. Then go to Step 9.
NO: Go to Step 5
STEP 5. Check the drive gear and drive pinion for wear.
Q: Is the drive gear or drive pinion worn?
YES: Replace the part. Then go to Step 9.
NO: Go to Step 6.
STEP 6. Check the side gear spacer or pinion shaft for wear.
Q: Is the side gear spacer or pinion shaft worn?
YES: Replace the part. Then go to Step 9.
NO: Go to Step 7.
STEP 7. Check the drive gear and differential case for wear or damage.
Q: Is the drive gear or differential case strained or damaged?
YES: Replace the part Then go to Step 9.
NO: Go to Step 8.
STEP 8. Check for foreign material.
Q: Is any foreign material found?
YES: Remove the foreign material and then inspect for damage. If necessary, replace the part. Then go to Step 9.
NO: Go to Step 9.
STEP 9. Retest the system.
Q: Is the abnormal noise eliminated?
YES: The procedure is complete.
NO: Start over at Step 1.