Possible Causes:
* Wheel Bearings: Worn wheel bearings are a common culprit for grinding noises, especially when turning. The noise might be louder when turning to the left because the left wheel bearing is under more load.
* Brake Rotors/Pads: Worn brake pads or rotors can also cause grinding, especially when braking. If the noise is consistent, even when not braking, it's less likely to be the brakes.
* Suspension Components: Worn suspension components like ball joints, control arm bushings, or tie rod ends can also produce grinding noises.
* Transmission Problems: While less common, transmission issues can also cause grinding noises, especially if the noise is more prominent when accelerating or decelerating.
* Driveshaft: A worn driveshaft or a problem with its connecting components can cause grinding, particularly when accelerating or decelerating.
What to Do:
1. Inspect the CV Joint: Check for any damage, leaks, or excessive movement in the CV joint itself.
2. Listen for the Noise: Try to pinpoint the location of the noise as precisely as possible. Does it change with speed, acceleration, braking, or turning?
3. Check for Wear: Inspect your brake pads and rotors, wheel bearings, and suspension components for wear or damage.
4. Seek Professional Help: If you can't identify the source of the noise, it's best to take your car to a qualified mechanic for diagnosis and repair.
Safety:
It's crucial to address any grinding noises coming from your car. Ignoring the issue could lead to more serious problems, potential damage to your vehicle, and potentially unsafe driving conditions.