For 1990-2009 cars

Step | Operation | Yes | No
--- | --- | --- | ---
DEFINITION: Driver is unable to maintain consistent, predictable vehicle driving control in any direction.
1 | Did you review the General Description and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Suspension General Diagnosis
2 | Verify that the directional stability is poor. Does the system operate normally? | System OK | Go to Step 3
3 |

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

• | Stabilizer Shaft Replacement

• | Stabilizer Shaft Link Replacement

• | Stabilizer Shaft Insulator Replacement

Does the vehicle still exhibit poor directional stability?

Go to Step 4

System OK

4 |

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

• | Lower Control Arm Replacement

• | Steering Linkage Outer Tie Rod Replacement

Does the vehicle still exhibit poor directional stability?

Go to Step 5

System OK

5 | 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
6 |

1. Check the vehicle trim heights. Refer to Trim Height Inspection .
2. Repair as necessary.

Does the vehicle still exhibit poor directional stability?

Go to Step 7

System OK

7 | Inspect and adjust the wheel alignment as necessary. Refer to Wheel Alignment Measurement . Does the vehicle still exhibit poor directional stability? | Go to Step 8 | System OK
8 |

1. Inspect the steering column for looseness. Refer to Looseness in Steering Column .
2. Repair as necessary.

Did you complete the repair?

Go to Step 9

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9 |

1. Inspect the steering gear mounting bolts for looseness. Refer to Fastener Tightening Specifications .
2. Repair as necessary.

Did you complete the repair?

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