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Harmful of bad wheel hub assembly of cars


The wheel hub assembly is prone to damage caused by multiple driving situations such as hitting pot holes, striking kerbs being involved in vehicle collisions.

Although this part takes a tremendous amount of abuse, it’s commonly overlooked when repairs are done to other mechanical components such as tyres and wheels, suspension parts, coils, shocks and struts and other front end and rear end housing parts. When the part is damaged or is beginning to show signs of premature wear, it will commonly show some warning signs or symptoms that can be easily recognised by most car owners. Listed below are a few of the symptoms that car owners should be aware of which will alert them to a bad or failing wheel hub assembly.

Roaring sound coming out of the tyre/wheel area: Typically, when a wheel hub assembly goes bad it’s actually the wheel bearing inside the single assembly that is damaged. This part will make a roaring sound, similar to a metal-to-metal grinding sound when the bearing is wearing out. This sound is caused by lack of lubrication inside the bearing, a misaligned bearing or one that has cracked due to impact with another object. It’s very difficult to determine by sound which wheel bearing is going bad as the sound can be very misleading. However, if one side wheel hub assembly is broken, both sides on the same axle need to be replaced at the same time. If you notice any roaring or grinding sound coming from the front end of your vehicle, safely drive home and contact a local a mechanic as soon as possible.

Steering wheel vibrates or feels loose: Another indication of a damaged wheel hub assembly is when the steering wheel vibrates at lower speeds and progressively gets worse as the car accelerates. A damaged wheel hub assembly can also cause the steering wheel to feel loose when you’re driving down the road, making turns or negotiating dips in the road. The reason for this is commonly due to a worn out wheel bearing inside the hub assembly. If you notice this symptom, it’s recommended to contact an experienced mechanic as soon as possible so he can road test your vehicle. This is often the best way to properly diagnose what is actually causing the vibration in the steering wheel and can save you a lot of time and money on replacing the wheel hub assembly.

Tyre/wheel combination has a lot of play when in the air: Most of the time, this symptom will be noticed by a good tyre and wheel care mechanic, or brakes replacement service technician, or oil change centre that is rotating your tyres. When the vehicle is on a hydraulic lift or on jack stands, and the tyre/wheel combo is tightly attached to the wheel hub assembly, but wiggles from left to right or up and down when pulled, this is an indication of a broken wheel hub assembly and should be replaced immediately. Once again, broken wheel hub assemblies should be replaced in pairs on the same axle.

Clicking sound from the wheels: Finally, if you hear a clicking sound that increases in speed as the vehicle accelerates, this could be a problem with the wheel hub assembly as well. In this case, the brake caliper will move up and down and hit the top of the wheels as the vehicle drives down the street. This is due to the wheel hub assembly bearing being broken.



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