Before beginning diagnosis, review the system description and operation in order to familiarize yourself with the system functions. Refer to Front Drive Axle Description and Operation .
Front Drive Axle symptoms can usually be classified into the following categories:
| • | Leaks |
| • | Noises |
| • | Vibrations |
Leak and noise related symptoms are diagnosed within the Front Drive Axle section. For vibration related symptoms, refer to Diagnostic Starting Point - Vibration Diagnosis and Correction .
| • | Inspect the system for loose or missing fasteners. |
| • | Inspect the system for loose or leaking components. |
| • | Inspect the system for obvious damage or conditions which may cause the symptom. |
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom.