PRE-RELEASE
Symptoms - Transfer Case
| Symptoms - Transfer Case |
| Strategy Based Diagnostics |
Review the system operation in order to familiarize yourself with the system functions. Refer to Transfer Case Disassembled View , Transfer Case Description and Operation , and Rear Drive Axle Description and Operation . All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system condition. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to Strategy Based Diagnosis .
| Visual/Physical Inspection |
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Inspect for aftermarket devices, which could affect the operation of the vehicle. Refer to
Checking Aftermarket Accessories
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Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.
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Inspect for the correct lubricant levels and the proper viscosities.
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Verify the exact operating conditions under which the concern exists. Note factors such as vehicle speed, road conditions, ambient temperature, and other specifics.
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Compare the driving characteristics or sounds, if that is the case, to a known good vehicle and ensure you are not trying to correct a normal condition.
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| Intermittent |
Test the vehicle under the same conditions that the customer reported in order to verify the system is operating properly.
| Symptom List |
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
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Diagnostic System Check - Vehicle
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Noisy in Drive
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Noisy When Coasting
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Intermittent Noise
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Constant Noise
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Transfer Case Leak Diagnosis
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