GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: The driver is unable to maintain consistent, predictable vehicle driving control in any direction.

1

Did you review the system Descriptions and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Suspension General Diagnosis

2

Verify that the vehicle exhibits poor directional stability.

Does the vehicle exhibit poor directional stability?

Go to Step 3

System OK

3

  1. Inspect the front suspension stabilizer system for wear or damage.
  2. Repair as necessary. Refer to the following procedures:
  3. •  Stabilizer Shaft Replacement in Front Suspension
    •  Stabilizer Shaft Link Replacement in Front Suspension
    •  Stabilizer Shaft Insulator Replacement in Front Suspension

Did you find and correct the condition?

Go to Step 10

Go to Step 4

4

  1. Inspect the steering and suspension components for wear or damage.
  2. Repair as necessary. Refer to the following procedures:
  3. •  Lower Control Arm Replacement in Front Suspension
    •  Rack and Pinion Outer Tie Rod End Replacement in Power Steering System
    •  Rack and Pinion Inner Tie Rod Replacement in Power Steering System
    •  Tie Rod Replacement in Rear Suspension

Did you find and correct the condition?

Go to Step 10

Go to Step 5

5

Inspect the wheel bearings and hubs for looseness or excessive lateral runout. Repair as necessary. Refer to Wheel Bearings Diagnosis .

Did you find and correct the condition?

Go to Step 10

Go to Step 6

6

Notice: Refer to Fastener Notice in the Preface section.

Inspect the fasteners on the steering column for looseness. Repair as necessary. Refer to Fastener Tightening Specifications in Steering Wheel and Column.

Did you find and correct the condition?

Go to Step 10

Go to Step 7

7

Inspect the fasteners on the steering gear for looseness. Repair as necessary. Refer to Fastener Tightening Specifications in Power Steering System.

Did you find and correct the condition?

Go to Step 10

Go to Step 8

8

Inspect the vehicle trim height. Repair as necessary. Refer to Trim Height Inspection .

Did you find and correct the condition?

Go to Step 10

Go to Step 9

9

Measure the wheel alignment. Adjust the wheel alignment as necessary. Refer to Wheel Alignment Measurement in Wheel Alignment.

Did you complete the alignment?

Go to Step 10

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10

Operate the vehicle in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3