GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Inspect the tires.

Are the tires mismatched or uneven?

Go to Road Test in Vibration Diagnosis and Correction

Go to Step 2

2

Inspect the tire inflation pressures.

Are the inflation pressures unequal?

Go to Tire Inflation Pressure Specifications in Maintenance and Lubrication

Go to Step 3

3

Inspect the springs.

Are the springs broken or sagging?

Go to Steering Diagnosis in Front Suspension

Go to Step 4

4

Inspect the radial tire lateral force.

Is the radial tire lateral force abnormal?

Go to Tire and Wheel Vibration in Vibration Diagnosis and Correction

Go to Step 5

5

Inspect the front and rear wheel alignment.

Is the wheel alignment incorrect?

Go to Wheel Alignment Specifications in Wheel Alignment

Go to Step 6

6

Inspect the front brakes.

Are the front brakes dragging?

Go to Brake Pedal Excessive Travel in Hydraulic Brakes

Go to Step 7

7

Inspect the ball joints.

Is high friction evident?

Go to Lower Control Arm Replacement in Front Suspension

Go to Step 8

8

Inspect the strut mounts.

Is high friction evident?

Go to Strut Assembly Replacement in Front Suspension

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