Four-Wheel Drive Systems: NVH
Symptom Chart -- NVH
NOTE:
NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to Noise, Vibration and Harshness Service Information
. Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system.
| Condition | Actions |
|---|---|
| Clicking/whirring noise from transfer case at start up | GO to Pinpoint Test U |
| The transfer case makes noise | GO to Pinpoint Test V |
| Noise from the front axle | REFER to: Front Drive Axle . |
| Noise from the rear axle | REFER to: Rear Drive Axle and Differential . |