What Causes Continuous Squeaking from the Rear Wheels When the Car is Moving?
2 Answers
Continuous squeaking from the rear wheels when the car is moving is a sound originating from the rear wheel components. Potential sources include the rear linkage, rear springs, rear shock absorbers, and rear stabilizer bar, all of which can produce noises during vehicle operation. These sounds should not be ignored as they can affect the driving stability of the vehicle. When abnormal noises from the rear wheels occur during normal driving, a comprehensive inspection of the vehicle is necessary. First, the vehicle should be taken to an authorized service center or repair shop to examine the shock absorbers and rear wheel components. Once the source of the noise is identified, targeted repairs should be performed.
Last time I encountered a rear wheel noise, it was the brake pads rubbing against the wear indicator. That metal piece is designed to be extremely thin—when it's nearly worn out, it squeaks to remind you to replace the brake pads. However, it could also be a pebble stuck in there. Once, I had a small stone lodged in my tire tread, and it made a whistling sound while driving. You should observe whether the noise only occurs when braking. If it's continuous, you might also need to rule out a bearing issue. The sound of a bad bearing is more like a low metallic grinding noise, and the wheel will feel hot to the touch. Another easily overlooked cause is a loose mudguard, especially after rainy days—if the plastic part deforms and rubs against the tire edge, it can also produce a squeaking sound. My suggestion is to first find a safe spot, get out, and shake the components around the wheel to locate the source of the noise.
