Symptoms - Transfer Case for Generic Unit Repair 2003
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with
the system functions. Refer to
Transfer Case Disassembled View
and
Transfer Case Description and Operation
, and
Differential Carrier Assembly Description
in Rear Drive Axle. 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 problem. The diagnostic flow is the place to start when
repairs are necessary. For a detailed explanation, refer to Strategy Based
Diagnostics in General Information.
Visual/Physical Inspection
| • | Inspect for aftermarket devices, which could affect the operation
of the vehicle. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for
obvious damage or conditions, which could cause the symptom. |
| • | Check for the correct lubricant levels and the proper viscosities. |
| • | Verify the exact operating conditions under which the concern
exists. Note factors such as vehicle speed, road conditions, ambient temperature,
and other specifics. |
| • | Compare the driving characteristics or sounds (if applicable)
to a known good vehicle and make sure you are not trying to correct a normal
condition. |
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:
