Diagnosis And Testing: Vibration
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
DRIVELINE VIBRATION
| Drive Condition | Possible Cause | Correction |
|---|---|---|
| Propeller Shaft Noise | 1) Undercoating or other foreign material on shaft. | 1) Clean exterior of shaft and wash with solvent. |
| - | 2) Loose or bent U-joint yoke or excessive runout. | 2) Install new yoke. |
| - | 3) Incorrect driveline angularity. | 3) Measure and correct driveline angles. |
| - | 4) Worn U-joint bearings. | 4) Install new propeller shaft. |
| - | 5) Propeller shaft damaged or out of balance. | 5) Install new propeller shaft. |
| - | 6) Broken rear spring. | 6) Install new rear spring. |
| - | 7) Excessive runout or unbalanced condition. | 7) Re-index propeller shaft, test, and evaluate. |
| - | 8) Excessive drive pinion gear shaft runout. | 8) Re-index propeller shaft and evaluate. |
| Universal Joint Noise | 1) Loose U-joint flange screws. | 1) Install new screws and tighten to proper torque. |
| - | 2) Lack of lubrication. | 2) Install new propeller shaft. |
Tires that are out-of-round, or wheels that are not balanced, will cause a low frequency vibration.
Brake rotors that are unbalanced will cause a harsh, low frequency vibration.
Driveline vibration can also result from loose or damaged engine mounts.
Propeller shaft vibration increases as the vehicle speed is increased. A vibration that occurs within a specific speed range is not usually caused by a propeller shaft being unbalanced. Defective universal joints, or an incorrect propeller shaft angle, are usually the cause of such a vibration.