When the wheel bearing rotates, there is high friction. Premature wheel bearing failure due to contamination In worst case scenario, affected wheel can lock up while driving or even tear off. Do not ignore the symptoms of a defective wheel bearing. Other factors can also contribute to premature bearing failure on your Fusion, like driving with unbalanced tires or poor wheel alignment. However, how soon they fail depends on driving habits. Therefore, all wheel bearings eventually fail. Impacts of all kinds are much more damaging to bearings than the high loads. High impacts on the bearings also occur on uneven roads or when driving through potholes. If a curve is then also driven through, axial forces occur. When driving, the speed creates additional forces. The entire weight of the vehicle rests on the bearings. What causes bearings to fail in Ford Fusion?Įven when driving your Fusion in a straight line, the bearings have to absorb high radial forces. If they are replaced at the same time, this saves time and money. It can be assumed that both bearings were subjected to roughly the same stress and that the failure of the second bearing is imminent. In general, it is advisable to change the second bearing on the same axle even if there is only one defective wheel bearing in your Ford Fusion. Should I replace only the defective wheel bearing in Fusion? You may also notice a play in the wheel as if the wheel is not correctly fitted or is loose. The wheel with bad bearing is difficult to turn by hand when the vehicle is jacked up, a grinding noise can be heard when the wheel is turned. However, this technique requires some experience and a practiced grip. If the play is clearly noticeable and visible, then the wheel bearing is very likely defective. Then grab the wheel with both hands at the opposite sides and alternately press and pull. Jack up your Ford Fusion until the wheel can move freely. You can also recognize a defective wheel bearing if there is too much play. Even when cornering, you may feel the handling of the vehicle a bit off. Since a bad wheel bearing can affect the alignment of the vehicle, your Fusion will pull to one side when driving in a straight line. If you notice that the tires in your Fusion are wearing unevenly, for example losing more tread on the inside, this can also be related to a bad wheel bearing since it can disturb the alignment of the vehicle. However these noises can also occur due to faults in suspension or steering system components, therefore you should consider a bad wheel bearing if the vehicle presents other system as well, like humming or grinding noise and play in the wheel. Knocking or clunking noise when corneringĪt an advanced stage of internal deterioration, the defective wheel bearing can cause knocking or clunking noises, particularly when turning or cornering in your Ford Fusion. Steering wheel vibration is most commonly caused by unbalanced wheels, therefore you should only consider bad wheel bearing in this case if the vibrations are accompanied by humming or grinding noise. If only the rear wheel bearings are defective, the vibration is mostly felt from under the seats. Steering wheel vibrationĪ bad wheel bearing can cause vibrations in the steering wheel of Fusion, particularly if the front wheels are affected. In many cases, however, the noise builds up after a short time – often after a few hundred miles. Damage to the wheel bearing is not easy to notice in the preliminary stages, as the noise is barely noticeable. The faster you drive your vehicle, the louder the humming noise gets. Grinding or humming noise in the cabin of Fusion from the direction of the affected wheel is one of the earliest signs of a bad wheel bearing.
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