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

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

Go to Step 2

Go to Symptoms - Suspension General Diagnosis

Verify that the vehicle exhibits poor directional stability.

Does the vehicle exhibit poor directional stability?

Go to Step 3

System OK

1. Inspect the stabilizer shaft, links, and insulators for wear or damage.
2. Replace as necessary. Refer to the following:

•	Stabilizer Shaft Replacement in Front Suspension

•	Stabilizer Shaft Link Replacement in Front Suspension

•	Stabilizer Shaft Insulator Replacement in Front Suspension

Does the vehicle still exhibit poor directional stability?

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 the following:

•	Lower Control Arm Replacement in Front Suspension

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

•	Tie Rod Replacement in Rear Suspension

•	Rear Axle Upper Control Arm Replacement in Rear Suspension

•	Rear Axle Lower Control Arm Replacement in Rear Suspension

Does the vehicle still exhibit poor directional stability?

Go to Step 5

System OK

Inspect the wheel bearings/hubs for looseness or excessive lateral runout. Refer to Wheel Bearings Diagnosis .

Does the vehicle still exhibit poor directional stability?

Go to Step 6

System OK

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

Does the vehicle still exhibit poor directional stability?

Go to Step 7

System OK

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

Does the vehicle still exhibit poor directional stability?

Go to Step 8

System OK

1. Inspect the fasteners on the steering column for looseness. Refer to Fastener Tightening Specifications in Steering Wheel and Column-Standard and to Fastener Tightening Specifications in Steering Wheel and Column-Tilt.
2. Inspect the fasteners on the steering gear for looseness. Refer to Fastener Tightening Specifications and to Steering Gear Replacement in Power Steering System.
3. Repair as necessary.

Did you complete the repair?

Go to Step 9

--

Operate the vehicle in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3