1. Wheel Bearings: Worn or damaged wheel bearings can produce a humming noise, especially when driving at higher speeds.
2. Driveline: Issues within the driveline, such as a faulty U-joint or CV joint, can also create humming noises.
3. Differential: Problems with the differential, such as low fluid levels or worn gears, can lead to a humming noise.
4. Tires: Uneven tire wear or issues with tire balance can sometimes cause humming noises.
5. Brakes: Issues with the brake rotors or pads, such as uneven wear or warping, can create humming noises.
To pinpoint the exact source of the humming noise in your 2000 Jimmy, it's recommended to have a professional mechanic inspect the vehicle and diagnose the issue. They will be able to identify the underlying cause and recommend the appropriate repairs.
