GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Vibrations seem to originate in transaxle area

1

Check for a worn or damaged wheel bearing. Refer to Diagnosis in Steering, Suspension, Tires and Wheels.

Are any of the wheel bearings worn or damaged?

 

Go to Step 2

Go to Step 3

2

Service or replace the faulty wheel bearing.

Did the vibration stop?

 

System OK

Go to Step 3

3

Check for a worn or damaged drive axle joint. Refer to Drive Axle Replacement in Drive Axle.

Is a drive axle joint worn or damaged?

 

Go to Step 4

Go to Step 5

4

Repair or replace the faulty drive axle joint.

Did the vibration stop?

 

System OK

Go to Step 5

5

Check for out of round tires. Refer to Tires and Wheels.

Add air to or replace tires.

Did the vibration stop?

 

System OK

Go to Step 6

6

Check for tire unbalance. Refer to Balancing Tire and Wheel in Tires and Wheels.

Rotate or service tires.

Did the vibration stop?

 

System OK

Go to Step 7

7

Check for worn drive axle C/V joint. Refer to Outer C/V Joint and Seal Assembly in Drive Axle Unit Repair.

Is the joint worn or damaged?

 

Go to Step 8

Go to Step 9

8

Repair or replace the C/V joint.

Did the vibration stop?

 

System OK

Go to Step 9

9

  1. Check for correct drive axle trim height. Refer to Vibrations in Steering, Suspension, Tire and Wheel Diagnosis.
  2. Adjust trim height as necessary.

Did the vibration stop?

 

System OK

Refer to Noisy in All Gears