One of the most noticeable signs of a failing wheel hub is noise, which can manifest in various forms depending on the nature of the issue. Grinding noises typically indicate that the wheel bearings within the hub are wearing out or have become damaged. This grinding sound may become more pronounced as the vehicle accelerates or makes turns.

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The functionality of wheel hubs extends beyond just supporting the wheels. They are also integral to the vehicle's braking system, especially in cars with disc brakes, where the hub forms part of the rotor assembly. The condition of the wheel hubs can directly impact tire wear and alignment. Understanding how wheel hubs interact with other components like bearings, brakes, and tires is critical to recognizing their importance in overall vehicle performance and safety.

The key word above is “listen.” Though you may be able to jack-up your vehicle and check the wheel for movement and play, noise will typically be your first (and best) indicator that you’ve got a wheel bearing on its way out.

Very, very good point–we’ve even seen folks pinpoint a trailer bearing that was physically hot to the touch. Heat’s a key byproduct of friction, so it’s often a telltale sign of a bad bearing.

But good news there, as there’s an easy test that may help. While it’s not 100% foolproof, if you notice the noise stops while you’re slightly veering left or right, then an opposite side wheel bearing is the likely culprit.

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The takeaway here is that early detection is important. And narrowing it down to the precise wheel can help save you some time and money in diagnostic costs.

Humming or droning noises are also common signs of a bad wheel hub and can point to issues with the wheel hub assembly. These sounds might be more noticeable at certain speeds and can vary in intensity. In some cases, a clicking noise, especially noticeable during turns, can signal a problem with the CV joint, which may be related to the hub condition.

The noise/vibration might only be noticeable at certain speeds, and it may even go away momentarily depending on chassis movement (more on that in a sec). In any event, it’ll likely get worse as the bearing continues its progression towards complete failure, so it’s good that you catch it as early as possible.

If you turn left, you unload left wheel, sake with right. If you turn left and sound dissapears it means that your left bearing is bad.

I’m confused at the question – but if you’re asking about handling then yes, a bad wheel bearing can affect the way the car handles and moves—it’s not something you want to drive on, so if you suspect it’s going bad, have it inspected as soon as you can.

Hello Marius, it’s not a turn, per se. It’s a slight, gentle shift (left or right) while you’re moving in a straight line—just enough to take some weight from the other side of the vehicle for a slight moment. When it’s unloaded, the noise may stop and, when it shifts back, it may start back up. … Again, it’s not a 100% scientific diagnostic, but it’s worked for us several times in the past.

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Hey Randy, it’s no so much a turn as it is a gentle, momentary veer–enough to unload weight on the opposite side for a fraction of a second. Once the steering wheel returns to neutral, the weight re-centers and the noise returns. Make sense?

In addition to vibrations, steering difficulties can also arise. A compromised wheel hub can affect the smoothness and responsiveness of steering. Drivers might notice that the vehicle pulls to one side or that steering requires more effort than usual. These symptoms can significantly impact driving comfort and, more importantly, safety.

But before you point the finger at a wheel bearing, you want to make sure the noise isn’t coming from somewhere else. So here are a few things to consider:

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We’ve got a really good article on driveline noises that goes into more detail. Check it out here: Quick Guide to Diagnosing Differential & Driveline Noises

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It's important to consult a professional if the ABS warning light is triggered or there's visible damage to the wheel hub. Delaying professional intervention can lead to more severe problems, risking your safety and potentially incurring higher repair costs. Timely and expert attention ensures your vehicle remains reliable and safe.

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Unusual Noises: A common sign of a failing wheel hub is strange noises from the wheel or tire area. These can range from grinding to humming sounds, often increasing in volume with vehicle speed.

Wheel hubs are the central component that connects the wheels to the car's chassis, allowing for smooth rotation. Within the hub assembly, bearings reduce friction and facilitate the free rotation of the wheel. This allows for efficient vehicle movement and handling as well as added stability.

Physical inspection can also be revealing. While the vehicle is raised, try shaking the wheel by hand. Any noticeable play or movement in the wheel can be a sign of a worn wheel hub or bearings. Visible damage to the hub assembly, such as cracks or corrosion, indicates that the hub may need attention.

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Hey Patty, I checked and it looks like, for the GMC Terrain, they’re sold as a wheel bearing & hub assembly, just like the ones in the topmost picture of this article—which typically makes them a bit easier to replace. Currently, Summit Racing carries over a dozen different types, with quite a few in stock, ready to ship. Click here to see the wheel bearing hub assemblies for 2013 GMC Terrain. (Or, there’s a good chance you’ll be able to find a replacement at your friendly local auto parts store too.) … Just remember to order the correct one for the correct wheel–Front or back, driver or Passenger side—as the application can differ a lot, particularly on AWD vs 2WD models. Good luck!

As the central point where the wheels attach to the car, automotive wheel hubs ensure that the wheels turn smoothly, and they play an important part in your car's braking, steering, and overall stability. A malfunctioning wheel hub can lead to many problems, from minor inconveniences to serious safety hazards, making it crucial for every driver and vehicle owner to know and recognize the signs of a bad wheel hub. Understanding the signs of wheel hub issues is essential so that you can do timely maintenance and repairs, helping to ensure a safe and smooth driving experience.

But given the amount of times it has to keep the wheels spinning really, really fast (and the rain-, dust-, and salt-rich environment it often has to work in), a wheel bearing will eventually wear out. While a failed wheel bearing can be a big problem, the good news is, it’ll probably give you plenty of warning that it’s going bad—you just have to know what to listen for.

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Vibrations and steering issues are significant indicators of wheel hub problems. When a wheel hub fails, it may cause noticeable vibrations that can be felt through the steering wheel. These vibrations become more apparent as the vehicle's speed increases, often a sign of worn or damaged wheel bearings within the hub assembly.

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Noticing problems with wheel hubs early can prevent more serious issues and ensure vehicle safety. Some common symptoms that indicate potential wheel hub problems include:

Loose or Wobbly Wheels: If the wheel hub assembly is damaged, it may cause the wheel to feel loose or wobbly when driving or during a tire change.

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Conducting a visual inspection can often reveal signs of wheel hub problems. One of the most noticeable symptoms is uneven tire wear, which can indicate a misaligned or failing wheel hub. Uneven wear patterns on the tire tread suggest the wheel is not sitting correctly, possibly due to a damaged hub, which would throw the wheel slightly out alignment, causing the uneven wear.

A wheel bearing is typically composed of a series of small roller bearings arranged in a circle and encased in a durable shell. The assembly is packed in grease and sealed to prevent excessive moisture and grit ingress. Then, the whole thing slips around the vehicle’s axle or spindle, where it can spin right round, baby.

Ignoring signs of wheel hub issues can lead to severe consequences for the vehicle's and driver's safety. A damaged or failing wheel hub can drastically affect the handling and stability of the car, increasing the risk of accidents, especially at high speeds or during sharp turns.

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Regular visual and physical inspections of the wheel hubs and bearings are essential for early detection of potential issues. Catching these signs early can prevent more significant problems and ensure the safety and longevity of your vehicle.

So, it's essential to address any symptoms of wheel hub problems quickly. Regular maintenance and timely repairs ensure safe driving conditions and help avoid more extensive and expensive damage to the vehicle in the long run.

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Vibrations: Faulty wheel hubs can cause vibrations that may be felt in the steering wheel, especially at higher speeds. These vibrations often indicate issues with the wheel bearings within the hub.

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Vibrations and steering problems affect the driving experience, leading to increased wear on other vehicle components, escalating repair costs, and potential safety risks.

It’s usually pretty easy to determine if the noise is coming from the front or back, given the driver’s seating position and their proximity to the front wheels. The hard part is often determining whether the noise is coming from the left or right (driver or passenger) side of the vehicle.

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It’s always a challenge to describe a noise in text, but a bad wheel bearing will often start out as a “growl,” sort of like a dull, soft grinding noise. It can also be a whine, a hum, or a soft roar. In some cases, bad wheel bearing noise could even manifest as a clunk or squeak.

Determining when to consult a professional mechanic for wheel hub issues is crucial for maintaining vehicle safety and performance. You should seek a professional assessment if you notice any of the signs mentioned earlier, such as unusual noises, vibrations, steering difficulties, or uneven tire wear.

Poor Handling or Steering: Compromised wheel hubs can affect the vehicle's handling and steering responsiveness, making it feel less stable or more challenging to control.

Also you can check a bad bearing buy taking off the grease caps then taking on a short run. Stop the car and with a thermometer point it at the centre of the bearing both sides of the car.The hottest bearing is the most worn and will give the loudest noises.

Continued operation with a compromised wheel hub can also cause further damage to the vehicle. It can lead to excessive wear on the tires and suspension system, potentially resulting in more costly repairs, with a need to replace parts like struts. In severe cases, a wholly failed wheel hub can cause the wheel to detach from the vehicle, posing a significant safety hazard, as you can imagine the problems arising from losing a wheel while at a speed of any significance.

It often boils down to both the vehicle and the driving conditions. All-wheel-drive cars put different demands on wheel bearings than, say, front wheel drive cars. Late-model performance cars place stresses on wheel bearings that regular commuter cars don’t. Mud-slinging off-roaders subject their wheel bearings to muck and grit that a street-driven car rarely sees. Make sense?

A wheel bearing has a real simple job: It makes sure that your wheel spins freely, without any binding or vibration. A wheel bearing’s goal is to mitigate the effects of friction, which ultimately improves your car’s ability to roll smoothly—all while reducing wear to ensure it’s able to do so for a long time.

That’s because veering like this shifts the weight off the side of the particular offending wheel for a few moments. Now unloaded with less stress, the bearing might shut up for a second and be perfectly content. When the vehicle weight shift returns to normal, the bearing is back to being loaded and it’ll start to whine again (sometimes literally).

Paul is the editor of OnAllCylinders. When he's not writing, you'll probably find him fixing oil leaks in a Jeep CJ-5 or roof leaks in an old Corvette ragtop. Thanks to a penchant for vintage Honda motorcycles, he spends the rest of his time fiddling with carburetors and cleaning chain lube off his left pant leg.

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How to tell whichwheel bearingisbadwhile driving

ABS Malfunction: Since many modern vehicles have ABS sensors integrated into the wheel hub assembly, a malfunctioning hub can trigger ABS warning lights on the dashboard.

Since a wheel bearing is located at or near the wheel, the noise will probably be coming from one corner of your vehicle—provided you’ve only got one bad bearing, of course.

A qualified mechanic can accurately diagnose the problem, whether related to the wheel hub assembly, bearings, or another component. They have the tools and expertise to conduct a thorough inspection and provide the necessary repairs or replacements.

That’s a tough question to answer with a definitive mile threshold. We hear tell of wheel bearings lasting the life of the vehicle, like 200,000 miles and up. Conversely, some cars (cough*old Subarus*cough) seem to go through wheel bearings every few years or so.

V-rings. 3. The sealing principle. An "ERIKS V-ring" is an all rubber one-piece seal which is mounted on a shaft and seals axially against a counterface.

So while at highway speeds, if you can safely(!) rock the steering wheel slightly left and right to shift the vehicle’s weight to each side, it may further help you diagnose where the noise is coming from.

You may also start to feel it through your steering wheel or in your backside seismograph. Again, a wheel bearing’s job is to ensure your wheel spins smoothly. When it doesn’t, you’ll probably start sensing unpleasant vibration and noise throughout the passenger cabin.

Paying attention to any unusual sound is important, as they often provide the first indication of many different vehicle maintenance issues, including wheel hub problems. Early detection and diagnosis can prevent further damage and ensure safe vehicle operation.