GM Service Manual Online
For 1990-2009 cars only

A constant velocity joint which is worn or damaged may cause a click noise during turns. This may be more apparent while simultaneously turning and accelerating. This click is caused by wear and/or damage to the constant velocity joint bearings and/or races. The common cause of constant velocity joint damage is the loss of lubricating grease and/or the presence of foreign material and contaminates in the joint.

Carefully inspect the wheel drive shaft seals (boots) for cuts, tears or other damage which may allow the lubricating grease to escape. The loss of this grease will cause damage to the wheel drive shaft constant velocity joint in a very short period of time. If the seals (boots) do not exhibit evidence of lubricant loss or damage, remove the wheel drive shaft from the vehicle and rotate the constant velocity joint in a circular motion. The action of the constant velocity joint should be smooth and even. If any binding and/or roughness is felt while performing this inspection, the constant velocity joint requires replacement.