NVH Troubleshooting Chart
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
| Possible cause and SUSPECTED PARTS | Symptom | Reference | ||
|---|---|---|---|---|
| Vibration | Shake | Noise | ||
| Uneven rotating torque | × | × | Inspection | |
| Center bearing improper installation | × | × | × | — |
| Excessive center bearing axial end play | × | × | — | |
| Center bearing mounting (insulator) cracks, damage or deterioration | × | × | — | |
| Excessive joint angle | × | × | × | Inspection |
| Rotation imbalance | × | × | Inspection | |
| Excessive runout | × | × | Inspection | |
| DIFFERENTIAL | × | NVH of FRONT and REAR FINAL DRIVE in this section. | ||
| AXLE AND SUSPENSION | × | × | × | NVH in FAX, RAX, FSU, and RSU section. |
| TIRE | × | × | × | NVH in WT section. |
| ROAD WHEEL | × | × | NVH in WT section. | |
| DRIVE SHAFT | × | × | × | NVH in FAX and RAX section. |
| BRAKE | × | × | NVH in BR section. | |
| STEERING | × | × | × | NVH in ST section. |
×: Applicable
Other materials
Unit Parameter Writing
Description
After working the following, transfer unit parameter must be written to transfer control unit.
Transfer control unit replacing
Transfer assembly replacing
Transfer control actuator replacing
Transfer range position sensor replacing
Transfer cam position sensor replacing
Transf ...
Noise, Vibration and Harshness (nvh) Troubleshooting
NVH Troubleshooting Chart
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts. Possible cause and SUSPECTED PARTS Symptom Reference
Noise
Gear tooth rough
×
—
Gear contact improper
×
—
Tooth surfaces worn
×
—
Backlash ...
Chassis Control Module
Exploded View
WITHOUT DYNAMIC DIGITAL SUSPENSION AND ELECTRONIC AIR SUSPENSIONWithout ProPILOT ASSIST 2.1
Chassis control module
Bracket
With ProPILOT ASSIST 2.1
Chassis control module
Bracket
WITH DYNAMIC DIGITAL SUSPENSION AND ELECTRONIC AIR SUSPENSION
Cha ...