Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system functions. Refer to
Propeller Shaft Description and Operation
,
Transfer Case Description and Operation
for
the Getrag 760 transfer case, and
Rear Drive Axle Description and Operation
in this service manual. 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 Diagnosis
.
Visual/Physical Inspection
| | Important: The constant velocity (CV) joint is not serviceable. If the boot is torn or the joint is worn or damaged, replace the propeller shaft as an assembly.
|
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom: |
| - | Inspect the CV joint boot for rips or cracks. |
| - | Rotate the CV joint to inspect for binding. |
| - | Inspect the CV joint for grease or oil leakage. |
| • | Verify the exact operating conditions under which the concern exists. Note factors such as 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:
