GM Service Manual Online
For 1990-2009 cars only

Checks

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DEFINITION: A shudder occurs when accelerating the vehicle at low speeds.

The trim height is incorrect.

Correct the trim height. Refer to Trim Height in Suspension General Diagnosis.

The universal joint is worn.

Replace the universal joint. Refer to Universal Joint Replacement - Nylon Injected Ring or to Universal Joint Replacement - External Snap Ring .

The CV joints are worn or damaged on the front propeller shaft.

Replace the propeller shaft. Refer to Propeller Shaft Replacement .