Noises:
* Grinding or Growling Noise: This is the most common symptom. It's usually a low-pitched rumbling or growling sound that increases with speed. It might be more noticeable when turning, especially at lower speeds.
* Humming Noise: A consistent humming sound, also increasing with speed.
* Clicking or Popping Noise: These sounds might indicate the bearing is starting to fail and components are catching or shifting within the assembly.
* Noise that changes with turning: The noise may get louder or quieter depending on which way the wheel is turned.
Vibration & Handling Issues:
* Steering Wheel Vibration: A noticeable vibration in the steering wheel, particularly at higher speeds.
* Rough Ride: The ride quality might become rougher than usual.
* Wandering or Pulling: The vehicle might pull to one side or wander on the road. This is less common than noise but possible.
* Play in the Wheel: If you grab the top and bottom of the tire and try to wiggle it, excessive play indicates a worn bearing.
Other Signs:
* Worn Tire: Uneven or premature wear on the tire can be a *possible* indicator, but it's usually a symptom of other issues as well. Don't rely on this alone.
* Hot Wheel Hub: A very hot wheel hub after driving suggests significant friction within the bearing. (Caution: A hot hub is a dangerous sign; do not touch it directly. Let it cool completely before checking.)
* Leaking Grease or Fluid: Though less common, you might see grease leaking from the wheel bearing seal.
Important Note: It's crucial to address a bad wheel bearing promptly. Continued driving with a failing bearing can lead to complete bearing failure, resulting in loss of wheel control and a potentially dangerous accident. If you suspect a bad wheel bearing, take your vehicle to a qualified mechanic for inspection and repair as soon as possible. Don't attempt to diagnose or repair it yourself unless you have the necessary expertise and tools.
