DEFINITION: A faulty internal transfer case component that causes a growl or grinding noise in the transfer case while the vehicle is turning.
Review the Symptoms - Transfer Case and perform the necessary inspections. |
| High/low planetary carrier assembly |
- Inspect the high/low planetary carrier pinion gears for the following conditions:
- Inspect the high/low planetary carrier input gear for excessive thrust end play.
- Inspect the input gear teeth for excessive wear or damage.
- Replace the high/low planetary carrier assembly if any of the above conditions exist. Refer to Transfer Case Disassemble and Transfer Case Assemble .
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| Annulus gear |
- Inspect the annulus gear for teeth damage or wear. Refer to Transfer Case Cleaning and Inspection .
- Replace the annulus gear if it is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble .
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| Planetary differential |
- Inspect the planetary differential pinion gears for the following conditions:
- Inspect the planetary differential for deformation. Refer to Transfer Case Cleaning and Inspection .
- Replace the planetary differential assembly if it is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble .
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| Sun gears |
- Inspect the sun gears for the following conditions:
- Replace the sun gears if they are faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble .
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| Thrust washers |
- Inspect the thrust washers for seizure to the planetary differential.
- Inspect the thrust washers for galling.
- Replace the thrust washers if they are faulty and the mating component if it is damaged. Refer to Transfer Case Disassemble and Transfer Case Assemble .
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| Planetary differential not timed properly |
- Inspect the planetary differential for being timed properly. Refer to Transfer Case Assemble .
- Properly time the planetary differential gears. Refer to Transfer Case Assemble .
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