Cardan Shaft / Prop Shaft

If your Porsche Cayenne's Drive Shaft  Cardan Shaft / Prop Shaft is not operating efficiently, it will let you know immediately. Drive Shaft noises are usually caused by worn center support dampener, or a faulty center support bearing. Drive shaft noises and possible causes are as follows:

- A clunking or thumping sound, when going from acceleration to deceleration or deceleration to acceleration, may be caused by worn center support bearing dampener or diaphragm. A broken or worn center support bearing dampener will allow for the shaft to move up and down with changes in drive line torque. This movement will cause a loud clunking or thumping sound and make for a very uncomfortable ride. A broken center support bearing dampener is one of the most common failures on the Cayenne drive shaft.

- A whining sound from the drive shaft is sometimes caused by a dry, worn center support bearing. Since this bearing makes complete revolutions, it will make a different sound than a bad center support bearing dampener. A high-pitched, more constant whine will usually come from a faulty, broken or worn center support bearing.

- Grinding and squeaking from the drive shaft or prop shaft is frequently caused by worn C.V. joint. The joints become dry, causing the rollers to wear. The un-lubricated, damaged rollers then produce a grinding or squeaking sound, as they operate on the scored cap and cross surfaces.