NO.5 NOISE [WL-C, WE-C (AT)]
id0303c3802400
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5
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NOISE
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DESCRIPTION
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Noise is heard from front differential or transfer case.
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TROUBLESHOOTING HINTS
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• Joint shaft bearing abrasion or damage
• RFW hub abrasion
• Joint shaft abrasion
• Conventional front differential parts malfunction
• Incorrect tire pressure
• Improper oil level
• Transfer bearing damaged
• Transfer gear damaged
• Transfer drive chain damaged
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT JOINT SHAFT BEARING
• Is it OK?
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Yes
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Go to next step.
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No
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Replace joint shaft bearing.
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2
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INSPECT RFW HUB
• Is it OK?
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Yes
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Go to next step.
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No
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Replace RFW hub.
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3
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INSPECT JOINT SHAFT
• Is it OK?
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Yes
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Go to next step.
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No
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Replace joint shaft.
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4
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INSPECT CONVENTIONAL FRONT DIFFERENTIAL PARTS
• Are they OK?
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Yes
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Go to next step.
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No
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Replace defective part (s).
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5
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INSPECT TIRE PRESSURE
• Are they OK?
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Yes
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Go to next step.
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No
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Adjust the tire pressure.
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6
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INSPECT TRANSFER OIL LEVEL
• Is oil level OK?
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Yes
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Go to next step.
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No
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Adjust the oil level.
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7
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INSPECT TRANSFER INNER PARTS
• Transfer bearing
• Transfer gear
• Transfer drive chain
• Are they OK?
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Yes
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Go to next step.
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No
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Overhaul and check for wear and damage.
Replace if necessary.
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8
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• Verify test results.
• If the vehicle is repaired, troubleshooting completed.
• If the vehicle is not repaired or additional diagnostic information is not available.
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