What Causes the Squealing Noise When Reversing?
3 Answers
Reasons for squealing noise when reversing are as follows: Slow braking speed: When braking at a very slow speed, the brake disc and brake pads are in a critical state, which can easily cause abnormal noises. Impurities on the brake pads being pulled in reverse: During normal braking, there are granular impurities on the brake pads. Due to the rotation direction of the brake disc, these impurities are pulled in reverse when reversing, returning to the brake disc, which can also lead to squealing noises. Excessive use of the brake disc: Irregularities or abnormalities in the flatness or curvature of the brake disc or drum due to prolonged use, causing abnormal contact friction with the brake shoes. Poor quality of brake shoes: High metal content, poor quality, or excessive foreign matter in the brake shoes can lead to squealing noises.
That screeching noise when reversing is really annoying. Having driven for over a decade, I've seen many similar cases. Most often it's caused by brake pads wearing too thin or small stones getting stuck, creating friction that becomes more noticeable when wheels bear reverse forces. It could also be aging steering components, like rusted or loose tie rods making noise. Worn suspension bushings might also cause friction sounds during reverse turns. After parking, check brake discs for scratches – but safety first, don't tinker yourself, get it inspected professionally. I once delayed repairs until brakes completely failed – dangerously close call! Later spent a few hundred replacing pads and silence returned. Regular maintenance truly saves hassle, money and gives peace of mind.
Recently, I always hear a sharp screeching sound when reversing, which is really scary. As a new driver, this is exactly what I fear the most. I consulted an experienced driver friend who said it's mainly due to impurities like sand stuck between the brake discs or the brake pads being worn down to the metal. The sound becomes more noticeable when reversing, possibly because of aging or loose steering or suspension components moving. I think this concerns safety, so I dare not delay and decided to go to the 4S shop for a comprehensive check next weekend. My experience is that addressing vehicle problems early avoids bigger troubles and prevents driving distractions and sleepless nights. After all, a family car needs to be reliable. After the repair, maintaining a simple monthly check on the car's condition can prevent the noise from recurring.
