GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: At a constant highway speed on a typical straight road, lead/pull is the amount of effort required at the steering wheel to maintain the vehicle straight path.

1

Did you review the General Description and perform the visual/physical inspections?

Go to Step 2

Go to Symptoms - Suspension General Diagnosis.

2

Road test the vehicle in order to verify the complaint.

Does the vehicle operate normally?

System OK

Go to Step 3

3

Inspect the tyre/wheel assemblies for:

    • Correct tyre pressure. Refer to Tire Placard.
    • Correct tyre size. Refer to Tire Placard.
    • Abnormal tyre wear or damage. Refer to Tire Diagnosis - Irregular or Premature Wear.

Did you find and correct the condition?

Go to Step 8

Go to Step 4

4

Perform the Radial Tire Lead/Pull Correction.

Did you find and correct the condition?

Go to Step 8

Go to Step 5

5

Inspect and correct/adjust the suspension and steering systems for:

    • Vehicle trim height. Refer to Trim Height Inspection.
    • Excessively worn, loose, or damaged components.

Did you find and correct the condition?

Go to Step 8

Go to Step 6

6

Inspect/correct the brake system for brake drag. Refer to Brakes Drag.

Did you find and correct the condition?

Go to Step 8

Go to Step 7

7

Inspect the wheel alignment and adjust as necessary. Refer to Wheel Alignment Measurement.

Did you find and correct the condition?

Go to Step 8

Go to Strategy Based Diagnosis.

8

Operate the vehicle in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3