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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1367 (Suspension System General Diagnosis) >> Diagnostic Information and Procedures >> Wheel Bearings Diagnosis

Wheel Bearings Diagnosis

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Wheel Bearings Diagnosis

Step Action Values Yes No
1 Did you review the General Description and perform the necessary inspections? - Go to Step 2  Go to Symptoms - Suspension General Diagnosis 
2 Road test the vehicle in order to verify the customer's complaint.
Does the vehicle operate normally?		 - System OK Go to Step 3 
3
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Inspect the tires and wheels for damage. Refer to Tire and Wheel Assembly Runout Measurement - On-Vehicle in Vibration Diagnosis and Correction.
Did you find and correct the condition?		 - Go to Step 8  Go to Step 4 
4
  1. Install the J 39570  Chassis Ear.
  2. Road test the vehicle in order to verify the noise is from the wheel bearings.
Is the noise from the wheel bearings?		 - Go to Step 7  Go to Step 5 
5
  1. Remove the brake rotors and the drums, if equipped. Refer to the following appropriate procedure:
    2. IMPORTANT: Support the vehicle by the lower control arms or the rear axle in order to prevent movement while inspecting the wheel bearing and hub assembly.
  2. Install the J 8001  Dial Indicator.
  3. Verify the J 8001  contacts the hub flange.
  4. Push and pull on the hub in order to inspect the total travel indicated by the dial indicator.
Is the measurement greater then the specified value?		 0.05 mm (0.002 in) Go to Step 7  Go to Step 6 
6 Determine if the wheel hub and axle flange has excessive runout. Refer to Hub/Axle Flange and Wheel Stud Runout Inspection in Vibration Diagnosis and Correction.
Was the runout greater than the specification?		 0.132 mm (0.005 in) Go to Step 7  System OK
7 Replace the wheel bearing. Refer to Wheel Hub, Bearing, and Seal Replacement in Front Suspension or to Wheel Bearing/Hub Replacement - Rear (FWD) or Wheel Bearing/Hub Replacement - Rear (AWD) in Rear Suspension.
Did you complete the repair?		 - Go to Step 8  -
8 Road test the vehicle in order to verify the repair.
Does the vehicle operate normally?		 - System OK Go to Step 3 
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