What Causes the Abnormal Noise from the Left Rear Wheel of a Car?
2 Answers
Here are the specific reasons for the abnormal noise from the left rear wheel of a car: 1. Accumulation of foreign objects: Excessive accumulation of debris on the fender or sound insulation pad. When the car turns, the tire interferes with the debris, causing abnormal noise. After cleaning the fender, the tire noise disappears. 2. Loose screws: The fastening screws of the fender or sound insulation pad have come loose, causing the fender or sound insulation pad to lift. When the front wheel turns, it interferes with the lifted part, resulting in friction and abnormal noise. It is necessary to inspect the fastening condition of the fender and sound insulation pad and eliminate factors such as looseness and lifting. 3. Unauthorized modifications: Unauthorized modifications to the car tires, such as replacing them with non-original size tires. For example, widening the tires or increasing their diameter may cause interference between the tire and the car body when turning, resulting in noise. This poses a significant safety hazard, and the original size tires should be reinstalled.
Having worked with cars for many years, I've found that noises from the left rear wheel are mostly caused by a few common issues. Starting with the tire: incorrect tire pressure or uneven wear can cause squeaking sounds and make driving unbalanced; small stones or nails stuck in the tread can also create a tapping noise as hard objects get lodged in the grooves. Bearing problems are quite common too—worn or damaged bearings produce a humming sound when rotating, similar to a tractor noise; if the bearing is severely damaged, the wheel becomes unstable, and in extreme cases, it may even detach, which is dangerous. Issues with the braking system can also be the culprit, such as worn brake pads or foreign objects stuck on the disc, causing a sharp squeal when braking. Suspension components like worn-out shock absorbers or loose bolts can make a thumping noise when going over bumps. If you hear any unusual sounds, it's best to pull over safely first—check the tire for foreign objects, feel if the wheel is overheating, and if unsure, take it to a professional shop for inspection. Don’t delay, as small issues can turn into major problems and compromise driving safety.
