GM Service Manual Online
For 1990-2009 cars only

Limited Slip Differential Diagnosis

Step

Action

Values

Yes

No

1

Did you review the general description and perform the necessary inspections?

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Go to Step 2

Go to Diagnostic Starting Point - Locking/Limited Slip Rear Axle

2

Measure the rotational force of the axle using the following procedure:

  1. Block the front wheels.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  4. Using the J 28733-B Front/Rear Spindle Remover, measure the rotational force of the axle.
  5. Repeat the procedure for the other axle.

Does the force measure outside the specified range?

22-271 N·m (30-200 lb ft)

Go to Step 3

System OK

3

Repair the rear axle.

Did you complete the repair?

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Go to Step 4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

--

Go to Step 2

System OK