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Poor Directional Stability

WARNING: This page is about a different car, the 2002 Cadillac Escalade EXT and 2002 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

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? If so, go to next step. If not, go to SYMPTOMS - SUSPENSION GENERAL DIAGNOSIS  .
  2. Verify that the directional stability is poor. Does the system operate normally? If so, system is okay. If not, go to next step.
  3. Inspect the stabilizer shaft, link pins, and insulators for wear or damage. Replace as necessary. Does the vehicle still exhibit poor directional stability? If so, go to next step. If not, system is okay.
  4. Inspect the lower control arms, ball joints and tie rods for wear or damage. Repair as necessary. Does the vehicle still exhibit poor directional stability? If so, go to next step. If not, system is okay.
  5. Inspect the wheel bearings/hubs for looseness or excessive lateral runout. Refer to WHEEL BEARING DIAGNOSIS  . Does the vehicle still exhibit poor directional stability? If so, go to next step. If not, system is okay.
  6. Inspect and adjust the vehicle trim height. See TRIM HEIGHT INSPECTION PROCEDURE  . Does the vehicle still exhibit poor directional stability? If so, go to next step. If not, system is okay.
  7. Inspect and adjust the wheel alignment as necessary. Refer to WHEEL ALIGNMENT . Does the vehicle still exhibit poor directional stability? If so, go to next step. If not, system is okay.
  8. Inspect the steering column for looseness. Repair as necessary. After repairs are complete, go to next step.
  9. Inspect the steering gear mounting bolts for looseness. Repair as necessary. After repairs are complete, go to next step.
  10. Operate the vehicle in order to verify the repair. Did you correct the condition? If so, system is okay. If not, go to step  3 .
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