* Wheel Bearing Load: When turning right, more weight and stress are transferred to the right-side front wheel. A worn or damaged wheel bearing will create more friction and noise under this increased load. The humming sound is characteristic of a bearing struggling.
* Other Possibilities (less likely but still relevant):
* CV Joint: A failing CV (constant velocity) joint on the right side could also contribute to a humming noise, especially during turns. However, CV joint issues often present with clicking or popping sounds in addition to humming.
* Brake Caliper: A sticking or binding brake caliper on the right side could cause dragging and potentially a humming noise, but this would likely be accompanied by other symptoms like uneven brake wear or a hot brake rotor.
* Tire Issues: Though less probable to be the sole cause of a humming noise worsening only on right turns, a significantly unbalanced tire or a tire with a developing issue could contribute.
To diagnose the problem:
1. Check your tire pressure: Properly inflated tires are crucial.
2. Inspect the tires: Look for uneven wear, bulges, or embedded objects.
3. Listen carefully: Try to pinpoint the location of the noise. Jacking up the car and rotating the wheels by hand (with the engine off) can help isolate the problem to a specific wheel. Pay close attention to any roughness or unevenness in the rotation.
4. Professional Inspection: If you're not comfortable performing these checks yourself, take your Grand Prix to a mechanic for a thorough inspection. They have the tools and experience to accurately diagnose the issue.
It's crucial to address the problem promptly. Driving with a failing wheel bearing can lead to more serious damage and even a wheel falling off.
