What doesa bad wheel bearingsound like

Bearings are devices that reduce friction in mechanical devices that rotate. Your car’s wheels rotate, and wheel bearings help them move smoothly with the least amount of friction. These bearings are located in the hub to which the wheels are bolted. That hub is then bolted to the vehicle’s suspension. Wheel bearings that are in top shape are very important to the smooth operation of your car.

The subject of wheel bearings is already rather deep in the subject of car maintenance. Ordinarily, we just cover simple topics like tuneups and oil changes. But if you intend to keep your car for a decade or more—or drive it more than 100,000km—you’ll need to learn about this part.

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On most late-model vehicles manufactured since 1998, there is a wheel hub assembly in each wheel. When the assembly goes bad, it is removed and replaced with a new assembly. On cars made before 1997, front wheel drive cars use wheel hub assemblies at each wheel and rear wheel drive vehicles use two individual bearings and seals in both front wheels. Unlike a wheel hub assembly, bearings can be serviced.

Your vehicle’s traction control system also uses the ABS wheel sensors to operate. Considered an extension of the anti-lock braking system, the TCS system and ABS system work together to help you keep control of your car. If this sensor fails, it can compromise your anti-lock braking system and your traction control system.

First and foremost, the wheel hub assembly keeps your wheel attached to your vehicle and allows the wheels to freely turn enabling you to safely steer.

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When installing new parts on a car, it’s always best to use high-quality aftermarket or OEM parts. Going with low-quality components may be less expensive, but these items may fail prematurely and not last as long.

There are two ways to tell if your bearings have gone bad: by sound or through a wheel wiggle test. Check them out below:

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There are many factors that can accelerate the wear of wheel bearings; driving your wheels through flooded streets being one of them. Although bearings these days are ‘sealed,’ that doesn’t mean they’re waterproof. Driving through deep waters can shorten their life because the petroleum-based grease inside them doesn’t mix well with water. Other factors that accelerate bearing wear include driving on bad roads or with unbalanced wheels.

How to tellwhichwheel bearingisbadwhile driving

Other times, a bad bearing doesn’t even make a sound. But to test whether a bearing has gone bad, you can either put your car up on a lift or put it up on jack stands, then grip your hands on either the 3 and 9 o’clock or the 6 and 12 o’clock positions of the tire, then try to wiggle the wheel back and forth. If the wheel does wiggle, chances are it has a bad bearing or bad suspension pieces like ball joints or tie-rod ends.

Frontwheel bearingnoise symptoms

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To check if bad suspension parts are the source of wiggle, you’ll need to observe the ball joint and the tie-rod end behind the wheel as you perform the wiggle test. Have someone look behind the wheel as you do perform the test again. If there’s no movement seen in the ball joint or the tie-rod end, you definitely have a bad wheel bearing that needs replacement on that wheel.

Howlong canyoudrive ona bad wheel bearing

Once wheel bearings wear out, you’ll need to take them out for replacement. In some older cars, these bearings may be cleaned up and checked for wear. In case they’re still serviceable, they are repacked with fresh grease. However, those of the sealed variety fitted in most cars these days are simply replaced.

The wheel hub assembly is also critical to your anti-lock braking system (ABS) and the traction control system (TCS). Besides bearings, hub assemblies contain the wheel speed sensor that controls your vehicle’s ABS braking system. The sensor constantly relays to the ABS control system how fast each wheel is turning. In a hard braking situation, the system uses the information to determine if anti-locking braking is needed.

When bearings go bad, the grease inside has usually dried up. Once this happens, the small steel parts inside—the small steel balls and the rails they roll around in—corrode. Because of this, the wear on the bearing is accelerated, and there’s greater friction in its operation.

Wheel bearings can’t be seen, and thus, not much attention is really given to them. But they’re there, and they’re important. Every time you use your car, the wheel bearing inside the hub takes the entire weight of your car, its occupants, and whatever cargo you’re carrying.

The content contained in this article is for informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.

Sometimes, the wear and the friction create an audible sound that’s much like tire noise or the howling of wind. The sound comes on quite gradually that you barely notice it. What you do notice is that your car isn’t as quiet as it was as when it was new.

Wheel bearingreplacement cost

From safely negotiating a tight turn on a winding country road to changing lanes on the freeway, you depend on your vehicle to steer exactly where you want it to every time you jump in the driver’s seat. Have you ever thought about what enables you to turn left and right and go straight down the road? You might be surprised to learn that small part called a wheel hub assembly is a key component of your steering system.

How to tellwhichwheel bearingisbadin the front

Responsible for attaching the wheel to the car, a wheel hub assembly is a pre-assembled unit that features precision bearings, seals and sensors. Also called a wheel hub bearing, hub assembly, wheel hub unit or hub and bearing assembly, the wheel hub assembly is a crucial part of your steering system contributing to the safe steering and handling of your vehicle.

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The bearings are made up of many small steel balls rolling within metal rings packed with grease. After many kilometers of use, they wear out because the grease dries up and wears out.

On each wheel, you’ll find the wheel hub assembly between the drive axle and the brake drums or discs. On the brake disc side, the wheel is attached to the bolts of the wheel hub assembly. While on the side of the drive axle, the hub assembly is mounted to the steering knuckle either as a bolt-on or press-in assembly.

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Driving with a bad wheel hub assembly is dangerous. As the bearings inside the assembly become worn out, they can cause the wheels to stop turning smoothly. Your vehicle can become shaky and the wheels not secure. In addition, if the hub assembly degrades, the steel can fracture and cause the wheel to come off.