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

Road test the vehicle in order to verify the customer's concern.

Does the vehicle exhibit poor directional stability?

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Go to Step 2

System OK

1. Ensure that the tires are all the same size, make, and adequate tread depth.
2. Repair as necessary.
3. Ensure that all of the tires are inflated to the correct pressure. Refer to the tire placard on the driver's door lock pillar.
4. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 3

System OK

1. Inspect the stabilizer shaft, links, and insulators for wear or damage.
2. Repair as necessary.

•	Refer to Stabilizer Shaft Link Replacement in Front Suspension.

•	Refer to Stabilizer Shaft Insulator Replacement in Front Suspension.

3. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 4

System OK

1. Inspect the lower control arms, ball joints and tie rods for wear or damage.
2. Repair as necessary.

•	Refer to Lower Control Arm Replacement in Front Suspension.

•	Refer to Rack and Pinion Outer Tie Rod End Replacement in Power Steering System.

3. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 5

System OK

1. Inspect the wheel bearings for looseness. Refer to Wheel Bearings Diagnosis .
2. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 6

System OK

1. Inspect the vehicle trim height and repair as necessary. Refer to Trim Height Inspection .
2. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 7

System OK

1. Inspect and adjust the wheel alignment as necessary. Refer to Wheel Alignment Measurement in Wheel Alignment.
2. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 8

System OK

1. Inspect the steering gear and steering column for looseness. Refer to Wander or Poor Steering Stability in Power Steering System.
2. Repair as necessary.
3. Road test the vehicle in order to verify the customer's concern.

Does the vehicle still exhibit poor directional stability?

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Go to Step 1

System OK