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Could you please list some common issues that have been seen with the transfer case of the 2009 GMC Sierra?
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The 2009 GMC Sierra doesn't face any unique transfer case issues, but it may encounter common problems found in most vehicles. One prevalent issue is potential cracking or damage to the transfer case, resulting in oil leakage visible under the Sierra. This indicates the need for a visit to the repair shop. A more severe problem is the failure of the manual shift on-the-fly system in the automatic transfer case due to the anti-rattle clip penetrating the case, leading to additional fluid leaks. Lastly, there is the occasional unexpected shifting of the transfer case into another gear, a concerning situation especially with manual transmissions. If you experience this, it's crucial to seek immediate attention.
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Typical issues with the transfer case on a 2009 GMC Sierra often involve difficulties with engaging four-wheel drive.
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