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).

One or more of the universal joints are worn or damaged.

Replace the universal joint. Refer to Universal Joint Replacement.

The side gear hub counterbore in the differential is wornoversize.

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