GM Service Manual Online
For 1990-2009 cars only

Shudder on Acceleration at Low Speed CTS

Checks

Action

DEFINITION: When the vehicle is accelerating at low speed a shudder occurs.

The driveline joint angle is excessive or incorrectly set.

Determine if the driveline angle is incorrect and correct as necessary. Refer to Diagnostic Starting Point - Vibration Diagnosis and Correction .

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

Replace the driveshaft complete.

Rubber coupling bolts loose.

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

Shudder on Acceleration at Low Speed CTSV

Checks

Action

DEFINITION: When the vehicle is accelerating at low speed a shudder occurs.

The driveline joint angle is excessive or incorrectly set.

Determine if the driveline angle is incorrect and correct as necessary. Refer to Diagnostic Starting Point - Vibration Diagnosis and Correction .

Rubber coupling bolts loose.

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