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Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Front Suspension System) >> Repair Instructions >> Wheel Hub/Speed Sensor Replacement >> Removal Procedure
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Removal Procedure

WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to Brake Dust Caution .
CAUTION: Refer to ABS Component Handling Caution .
IMPORTANT: The wheel hub and speed sensor are serviced as an assembly. The are not service as individual items.
    Fig 1: View Of Brake Caliper Mounting Bracket
    GM1241358Courtesy of GENERAL MOTORS CORP.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the front brake caliper. Refer to Brake Caliper Replacement .
    3. Fig 2: View Of ABS Speed Sensor Wiring Harness
    GM1253279Courtesy of GENERAL MOTORS CORP.
  3. Remove the antilock brake system (ABS) speed sensor wiring harness from the upper control arm.
    4. Fig 3: View Of Speed Sensor Bracket Front Retaining Bolt
    GM1253304Courtesy of GENERAL MOTORS CORP.
  4. Remove the front retaining bolt for the speed sensor bracket at the upper control arm.
    5. Fig 4: View Of Speed Sensor Bracket
    GM1253302Courtesy of GENERAL MOTORS CORP.
  5. Remove the speed senor bracket from the upper control arm.
    6. Fig 5: View Of Speed Sensor Electrical Connector
    GM1253261Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Mark the holes used to mount the speed sensor electrical connector before removing. This will ensure the proper location of the speed sensor electrical connector for installation.
  6. Remove the speed sensor electrical connector from the body.
    7. Fig 6: Marking Location Of Speed Sensor Wiring Harness To Steering Knuckle
    GM1253287Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The following service procedure is to ensure that the speed sensor wiring harness is properly positioned so that the length of the wiring harness is correct for installation. Failure to do so could cause damage to the speed sensor wiring harness.
  7. Using white or bright colored paint, mark the location of the speed sensor wiring harness to the steering knuckle.
    8. Fig 7: Bundling Speed Sensor Wiring Harness
    GM1339819Courtesy of GENERAL MOTORS CORP.
  8. To ensure the ease of removal, bundle speed sensor wiring harness so not to have it entangled in any of the suspension components.
    9. Fig 8: View Of Steering Knuckle
    GM1135803Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The following service procedure applies to those vehicles that are equipped with 4 wheel drive ONLY.
  9. Remove the steering knuckle assembly. Refer to Steering Knuckle Replacement .
    10. Fig 9: View Of Wheel Bearing/Hub Mounting Bolts, Brake Rotor Assembly
    GM1253333Courtesy of GENERAL MOTORS CORP.
  10. Remove the mounting bolts for the wheel bearing/hub, brake rotor assembly.
    11. Fig 10: View Of Wheel Hub/Speed Sensor Assembly
    GM1253296Courtesy of GENERAL MOTORS CORP.
  11. Remove the wheel bearing/hub, brake rotor assembly from the steering knuckle.
    12. Fig 11: View Of Wheel Hub/Speed Sensor To Brake Rotor Bolts
    GM1241354Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Perform the following service procedure with the brake rotor on a flat surface.
  12. Remove the mounting bolt from the wheel bearing/hub, to the brake rotor.
    13. Fig 12: View Of Brake Rotor
    GM1241355Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The splash shield will come off the steering knuckle when the wheel bearing/hub, brake rotor is removed.
  13. Remove the wheel bearing/hub from the brake rotor.
  14. Clean the contact area between the wheel bearing/hub and the brake rotor.
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