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Save on a wheel bearing repair by fixing it yourself. Learn how to properly remove and install a new wheel bearing or wheel hub assembly on your vehicle with 1A Auto’s how-to videos.

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One way to confirm which wheel bearing is bad is to check it with a stethoscope. With the vehicle running up in the air, listening with a stethoscope pressed against the wheel knuckle can pinpoint which wheel bearing is making noise

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Spin the wheel/tire and place a hand on the strut’s coil if the vehicle has coil-over struts. Sometimes you can feel the wheel bearing reverberating on the coil with one hand while the wheel is spinning. Sometimes you can hear the grinding noise from the wheel or tire when spinning it.

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When a wheel bearing wears out, it can make a grinding, rubbing, or scraping noise from the wheel while driving as the internal parts wear and cause more resistance. This can increase in sound volume the longer it goes unreplaced.

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If you hear a groaning, rubbing, whirring, knocking, or grinding noise when driving your car, it could mean you have a bad wheel bearing. Since wheel bearings are usually built as a part of the wheel hub assembly, it likely means the whole wheel hub assembly needs replacing. This article will explain the signs of a bad wheel bearing, what causes a bad wheel bearing, and how to diagnose and replace a wheel bearing or wheel hub assembly yourself.

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On many vehicles, the wheel bearing is included with the wheel hub as a wheel hub assembly. This means if the wheel bearing is bad, the whole wheel hub assembly might need to be replaced.

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You can feel and hear a bad wheel bearing with a simple test at the tires. Raise and secure the vehicle. Grab the tire from the 12 and 6 o’clock position. Press the tire in and out. Test and feel for any excessive movement or looseness.

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On many vehicles, the anti-lock brake system (ABS) is a part of the wheel hub, and if this malfunctions, the entire wheel hub assembly and wheel bearing will need to be replaced.

Bad wheel bearings might also make a groaning or rubbing noise when turning—another sign the wheel bearing is bad and is affected by the vehicle shifting weight.

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Wheel bearings sit on the wheel hub on “races” that allow it to spin. When a wheel bearing goes bad from normal wear and tear, lack of grease on the bearing, or elements getting inside, it will have more resistance when spinning. This can create a scraping or grinding noise when driving or when turning the front or rear wheels. As the internal parts wear down, the bearing creates more “play,” which can sometimes be felt in other parts like the steering wheel. The wheel hubs will also become exceptionally hot from the extra friction which could cause more damage to the hub and internal components.

Too much “play” in the wheel bearing can make the steering feel loose as the wheel hub gets less effective at turning from wear and tear. Sometimes tire vibrations can be felt in the steering wheel as the worn parts of the bearing start to grind.

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For a better idea of what a bad wheel bearing sounds like, this video has a few examples of how a bad wheel bearing sounds.