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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1918 (Suspension System - General Information - F250-F550 Super Duty) >> General Procedures >> Wheel Bearing Inspection >> Four wheel drive (4WD) vehicles

Four wheel drive (4WD) vehicles

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: An assistant will be needed for this procedure.
  1. 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 (25 mph).
    2. 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 7.
  2. 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.
    3. Fig 1: Placing Stethoscope On The Knuckle Near The Wheel Bearing
    GF0006076Courtesy of FORD MOTOR CO.
    NOTE: If the vehicle is equipped with a limited-slip front axle, do not hold the wheel. Evaluate both wheels simultaneously. Go to Step 7.
  3. Evaluate the other front wheel.
    • While holding the previously evaluated wheel, run the vehicle to 40 km (25 mph). Release the wheel being held.
    • 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.
    4. Fig 2: Holding Wheel
    GF0006077Courtesy of FORD MOTOR CO.
  4. 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 8.
    • If both sides sound similar (not loud or noisy), carry out a wheel bearing end play check.
    5. NOTE: Make sure the wheel rotates freely.
    NOTE: Rotate the hublocks to the unlocked position.
  5. Carry out the following steps for the wheel bearing end play setup:
    • Install the special tool to the knuckle.
    • 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.
    6. Fig 3: Identifying Dial Indicator Set-Up
    GF0006078Courtesy of FORD MOTOR CO.
  6. 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 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.
    7. Fig 4: Checking Wheel Bearing Endplay
    GF0006079Courtesy of FORD MOTOR CO.
  7. Remove the wheel hub. For additional information, refer to FRONT SUSPENSION - FOUR WHEEL DRIVE (4WD) article.
  8. 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.
  9. 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.
      • Fig 5: Inspecting Wheel Hub
      GF0006080Courtesy of FORD MOTOR CO.
    • 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.
  10. Install the wheel hub. For additional information, refer to FRONT SUSPENSION - FOUR WHEEL DRIVE (4WD) article.
    11. Fig 6: Installing The Wheel Hub
    GF0006081Courtesy of FORD MOTOR CO.
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