Wheel Bearings Diagnosis

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

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 complaint. Does the vehicle operate normally?	-	System OK	Go to Step 3
3	Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Inspect for tire or wheel damage. Refer to Tire and Wheel Assembly Runout Measurement - On-Vehicle . Did you find and correct the condition?	-	Go to Step 7	Go to Step 4
4	Install the J 39570 chassis ear. Road test the vehicle to verify the location of the wheel bearing noise. Did you locate the source of the wheel bearing noise?	-	Go to Step 6	Go to Step 5
5	IMPORTANT: 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. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the wheel and tire. Refer to Tire and Wheel Removal and Installation . Mount and secure the J 8001 to the steering knuckle. Firmly push the hub flange towards the vehicle. Ensure that the J 8001 contacts the vertical surface of the hub flange as close as possible to the center of the flange. Firmly pull the hub flange away from the vehicle. Inspect the total movement indicated by the J 8001 . Is the measurement greater then the specified value?	0.051 mm (0.002 in)	Go to Step 6	System OK
6	Replace the wheel bearing. Refer to Wheel Hub, Bearing, and Seal Replacement . Did you complete the repair?	-	Go to Step 7	-
7	Road test the vehicle to verify the repair. Does the vehicle operate normally?	-	System OK	Go to Step 3