GM Service Manual Online
For 1990-2009 cars only

Checks

Action

DEFINITION: Knocking or clunking noise occurs when operating the vehicle in high gear or coasting in neutral at 16 km/h (10 mph).

The universal joint is worn or damaged.

Replace the complete propeller shaft. Refer to Propeller Shaft Replacement .

The rubber coupling is damaged.

Replace the rubber coupling. Refer to Rear Propeller Shaft Coupling Replacement .

The rubber coupling to propeller shaft retaining bolts and nuts are loose.

Tighten the bolts to specifications. Refer to Fastener Tightening Specifications .

The rubber coupling is damaged.

Replace the rubber coupling. Refer to Rear Propeller Shaft Coupling Replacement .

The center bearing is damaged.

Replace the center bearing. Refer to Propeller Shaft Center Support Bearing Replacement .

The side gear in the differential is worn or oversize.

Replace the differential case and/or the side gears. Refer to Differential Replacement .