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Wheel Bearings Diagnosis

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE 
    NOTE: If you are inspecting the FRONT wheel bearing/hub, support the front of the vehicle by the lower control arms in order to load the lower ball joint.
  2. Mount and secure the J-8001 to a stand.
  3. Ensure that the J-8001 contacts the vertical surface of the wheel as close as possible to the top wheel stud.
    Fig 1: Using J-8001 To Measure Wheel Bearing Wear
    G00371043Courtesy of GENERAL MOTORS CORP.
  4. Push and pull on the TOP of the tire.
  5. Inspect the total movement indicated by the J-8001.
  6. If the measurement exceeds 0.127 mm (0.005 in), replace the wheel bearing/hub. Refer to WHEEL BEARING/HUB REPLACEMENT - FRONT in FRONT SUSPENSION .
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