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Wheel Bearing Inspection

WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

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Special Tool(s) / General Equipment 

GFD404508Courtesy of FORD MOTOR COMPANY
 100-D002 (D78P-4201-B) Dial Indicator Gauge with Holding Fixture

Inspection 

All vehicles 

  1. Inspect the tires for cupping. A tire with cupping wear can duplicate a bearing noise. Refer to: Wheels and Tires .
  2. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .

    All vehicles 

  3. NOTE: Make sure the wheel rotates freely and the brake pads are retracted sufficiently to allow movement of the tire and wheel assembly.

    Grasp each front tire at the top and bottom and move the wheel inward and outward while lifting the weight of the tire off the front wheel bearing.

  4. If the tire and wheel (hub) is loose on the wheel spindle, adjust the front wheel bearings. Refer to: Wheel Bearing Adjustment - F-250/F-350 .

    All vehicles 

  5. NOTE: An assistant will be needed for this procedure.

    Carry out the following steps:

    • Rotate the hublocks to the locked position.

    • Shift the transfer case to an engaged position.

    • With the vehicle in DRIVE, run the vehicle to 40 km/h (25 mph).

  6. NOTE: If the vehicle is equipped with a limited-slip front axle, both the wheels will be turning. Evaluate both wheels at this time, then continue to Step 8.

    Evaluate the front wheel that is turning.

    • Place the stethoscope on the knuckle near the wheel bearing.

    • Make a mental note of the sound.

    • Using the brakes, stop the wheels from turning.

    GFD404509Courtesy of FORD MOTOR COMPANY
  7. NOTE: If the vehicle is equipped with a limited-slip front axle, do not hold the wheel. Evaluate both wheels simultaneously. Go to Step 8.

    Evaluate the other front wheel.

    • Place the stethoscope on the knuckle near the wheel bearing.

    • Make a mental note of the sound.

    • Using the brakes, stop the wheels from turning.

    GFD404510Courtesy of FORD MOTOR COMPANY
  8. Compare the results.

    • If one side sounds louder than the other, install a new bearing on the louder side.

    • If both sides sound equally loud, go to Step 9.

    • If both sides sound similar (not loud or noisy), carry out a wheel bearing end play check.

  9. NOTE: Make sure the wheel rotates freely.
    NOTE: Rotate the hublocks to the unlocked position.

    Carry out the following steps for the wheel bearing end play setup:

    • Install the Dial Indicator Gauge With Holding Fixture to the knuckle. Use Special Service Tool: 100-D002 (D78P-4201-B) Dial Indicator Gauge with Holding Fixture.

    • Place the probe on the brake disc where the splash shield has a V opening.

    • Make sure the probe can move in a lateral direction.

    • Tighten the neck of the probe.

    GFD404511Courtesy of FORD MOTOR COMPANY
  10. Carry out the following steps for the wheel bearing end play:

    • Push the wheel inward at the 6 o'clock position.

    • Set the Dial Indicator Gauge With Holding Fixture to 0.

    • Pull the wheel outward at the 6 o'clock position.

    • Record the measurement.

    • Repeat this step 3 to 5 times.
      If the wheel bearing end play is greater than 0.13 mm (0.005 in), install a new wheel bearing.
      If the wheel bearing end play is less than 0.13 mm (0.005 in), the wheel bearing is within specification. Go to the next step.

    GFD404512Courtesy of FORD MOTOR COMPANY
  11. Remove the front wheel bearing wheel hub. Refer to: Front Wheel Bearing and Wheel Hub .
  12. Carry out the following steps for the needle bearing visual inspection:

    • With the wheel hub on a bench, visually inspect the needle bearing.

    • Check for any rust, wear or damage.

    • Check the condition of the rollers.

    • Make sure there is a small amount of grease on the needle bearing.
      If the needle bearing has rust, is worn or damaged, install a new needle bearing.
      If the needle bearing looks OK, go to the next step.

  13. Carry out the following steps for the wheel bearing roughness inspection:

    • With the wheel hub on a bench, rotate the outer flange of the wheel bearing while applying downward pressure.
      If the wheel bearing rotates freely, without roughness, check the bearing for noise.
      If the wheel bearing does not rotate freely, install a new bearing.

    • Rotate the outer flange of the wheel bearing while applying downward pressure. Using a stethoscope, check the wheel bearing for noise.
      If the wheel bearing rotates freely, without noise, the wheel bearing is OK. Conduct a diagnosis on other suspect components or systems.
      If the wheel bearing does not rotate without noise, install a new bearing.

    GFD404513Courtesy of FORD MOTOR COMPANY
  14. Install the front wheel bearing wheel hub. Refer to: Front Wheel Bearing and Wheel Hub .
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