Noise Or Vibration In Turns
Vibration associated with the Constant Velocity (CV) joints in the halfshafts occur in the 3rd and 6th order (3 or 6 events for each rotation). The inner tripod joint with three pivot axis has three events in each rotation of the halfshaft. This will produce a 3rd order vibration of the wheel rotation speed. The outer CV joint with 6 pivot axis balls has six events in each rotation of the halfshaft. This will produce a 6th order vibration of the wheel rotation speed. A 6th order vibration will create a high pitch sound, like gear noise. Use a vibration analyzer to determine the frequency of the vibration before replacing components.
| SYMPTOM | POSSIBLE CAUSE | REPAIR |
|---|---|---|
| CLICKING NOISE WHILE TURNING. | 1. Lack of lube in CV joint boots. | 1. Replace the halfshaft. |
| CLUNK OR SNAP NOISE WHILE TURNING. | 1. Loose wheel or hub nut. | 1. Tighten wheel or hub nut. Replace damaged components. |
| LOUD KNOCKING NOISE CENTERING ON INNER CV TRIPOD JOINTS. | 1. Damaged Differential side/pinion gears. | 1. Remove halfshaft and rotate side gears by hand. Replace necessary transmission components. |
Noise may also be caused by another component of the vehicle coming in contact with the halfshaft, brake or wheel assemblies.