1. Wheel bearings: Worn or damaged wheel bearings can cause a squealing or grinding noise, especially when the vehicle is turning or going over bumps. If the noise persists after the brakes have been replaced, it's worth checking the condition of the wheel bearings.
2. Brake pads or rotors: Even though the brakes have been replaced, there's a chance that the new brake pads or rotors may not have been properly installed or may be defective. This can lead to squealing or grinding noises during braking or while driving.
3. Brake caliper: A faulty or misaligned brake caliper can cause the brake pads to rub against the rotors, creating a squealing noise. This can also happen if the brake caliper is not properly lubricated.
4. Control arm bushings: Worn or damaged control arm bushings can cause a variety of noises, including a squealing sound. Control arms connect the suspension to the wheels, and if the bushings are worn out, they can allow the wheels to move excessively, which can cause the brakes to squeal.
5. Driveshaft: A worn-out or damaged driveshaft can also produce a squealing noise. The driveshaft is responsible for transmitting power from the transmission to the wheels, and if it is damaged, it can cause vibrations or squealing noises.
If you're experiencing a loud squealing noise from the front wheels of your vehicle, it's important to have it diagnosed by a qualified mechanic to determine the exact cause and get it repaired to ensure the safety and performance of your vehicle.