1. Check the tires for proper inflation pressures.
2. Check the tires for any uneven wear.
3. Road test vehicle to verify complaint.

•	A bearing noise will change when the vehicle is tured from right to left.

•	A tire noise will vary as different road surfaces change, ie. asphalt to concrete.

Dose the noise appear to be a bearing noise?

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Go to Step 2

Go to Step 6

Are Chassis Ears or equivalant device available for road testing.

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Go to Step 3

Go to Step 4

1. Attach microphone clips onto each front and rear knuckle.
2. Again road test and duplicate the noise.

Important: A suspect wheel bearing will stand out distinctly from the other 3 monitered.

3. Monitor each corner for noise present.

Was a suspect wheel bearing found?

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Go to Step 7

Go to Step 1

1. Hoist the vehicle.
2. Support the lower rear control arms.
3. Spin the wheel with the spinner portion of an On the Car Wheel Balancer.

Can the noise be Heared?

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Go to Step 7

Go to Step 5

1. Hoist the vehicle.
2. Support the front supension so that the drive axels are in normal horizontal position.
3. Start the engine.
4. Turn the wheels by putting the vehicle in gear.

Can the noise be heard?

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Go to Step 7

Go to Looseness chart

1. Install a Known good (quit) set of tires.
2. Again road test to evaluate tire set.

Is the noise corrected?

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Go to Step 8

Go to Step 1

Replace the bearing and hub assembly.

Is the repair complete?

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System OK

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Replace tire or tires.

Is the repair complete?

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System OK

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1. Remove the calipers. Refer to Brakes.
2. Remove the brake pads. Refer to Brakes.
3. Reinstall two of the wheel nuts to secure the rotor to the bearing and hub assembly.
4. Mount the dial indicator. Grasp the rotor and use a push/pull movement.

Is the looseness greater than the value shown?

.005 in

Go to Step 2

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Replace the bearing and hub assembly. Refer to Front Suspension.

Is the repair complete?

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System OK

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