GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: The tire/wheel bounce with a frequency directly related to the vehicle speed.

1

Did you review the General Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Suspension General Diagnosis

2

Verify that the tires hop or that the vehicle handles poorly.

Does the vehicle handle normally?

System OK

Go to Step 3

3

Inspect the tires for uneven wear or damage.

Are the tires worn or damaged?

Go to Step 7

Go to Step 4

4

Inspect the tires and wheels for missing wheel weights.

Are the wheel weights missing?

Go to Step 8

Go to Step 5

5

Inspect the tires and wheels for excessive runout. Refer to Tire and Wheel Assembly Runout Measurement - On-Vehicle in Vibration Diagnosis and Corrections.

Does the tire and wheel have excessive runout?

Go to Step 7

Go to Step 6

6

Inspect the shock absorbers for wear or damage. Refer to Suspension Strut and Shock Absorber Testing - On Vehicle .

Are the shock absorbers worn or damaged?

Go to Step 9

Go to Step 10

7

Replace the tire/wheel if necessary. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

Did you complete the repair?

Go to Step 10

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8

Balance the tire and wheel assembly. Refer to Tire and Wheel Assembly Balancing - Off Vehicle in Vibration Diagnosis and Correction.

Did you complete the repair?

Go to Step 10

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9

Replace the shock absorbers. Refer to Shock Absorber Replacement in Front Suspension or Shock Absorber Replacement in Rear Suspension.

Did you complete the repair?

Go to Step 10

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10

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3