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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Rear Suspension System) >> Trouble Shooting >> Poor Directional Stability

Poor Directional Stability

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: 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, proceed to next step. If not, see SYMPTOMS (SUSPENSION GENERAL DIAGNOSIS) .
  2. Verify that the directional stability is poor. Does the system operate normally? If so, system is okay. If not, proceed to next step.
  3. Ensure that the tires are all the same size, make, and adequate tread depth. Repair as necessary. Ensure that all of the tires are inflated to the correct pressure. Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  4. Inspect the stabilizer shaft, links, and insulators for wear or damage. Replace as necessary. See STABILIZER SHAFT in FRONT SUSPENSION . Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  5. Inspect the lower control arms, ball joints and tie rods for wear or damage. Repair as necessary. Refer to the following: Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  6. Inspect the wheel bearings/hubs for looseness or excessive lateral runout. See WHEEL BEARING . Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  7. Inspect the vehicle trim height. See TRIM HEIGHT . Repair as necessary. Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  8. Inspect and adjust the wheel alignment as necessary. See GRAND PRIX . Does the vehicle still exhibit poor directional stability? If so, proceed to next step. If not, system is okay.
  9. Inspect the steering gear and steering column for looseness. See POWER STEERING SYSTEM TEST PROCEDURE . Repair as necessary. When complete, proceed 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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