GM Service Manual Online
For 1990-2009 cars only

Condition

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 worn or damaged universal joint. Refer to Double Cardan Universal Joints Replacement .

The side gear hub counterbore in the differential is worn oversize.

Replace the differential case and/or the side gears.