What Causes the Rear Wheel Noise When Releasing the Handbrake to Start?
4 Answers
Introduction to the causes of the noise is as follows: 1. Releasing the brake too slowly when starting: This is a common issue for many automatic transmission car owners. When the brake pedal is released slowly, the engine already has sufficient power to drive the car forward, but the brake is not fully released, causing the moving wheels to be held back by the brake system, resulting in noise. The solution is to release the brake quickly. 2. The brake disc and brake pads sticking together due to rust: This usually occurs after driving in the rain and then leaving the car unused for several days. The brake disc and brake pads rust and stick together, causing noise when starting the car again. The solution is to apply butter or special lubricating oil at the connection between the brake pads and the brake caliper at a repair shop. 3. Metal particle friction noise: Many brake pads nowadays are made of semi-metallic materials, containing a large number of metal fibers. Sometimes metal particles form, producing a sharp noise when pressing or releasing the brake. This noise usually disappears after driving for a while. If it persists, it may indicate poor manufacturing quality, and it is recommended to replace the brake pads promptly to avoid damaging the brake disc.
I've found that the squeaking noise from the rear wheels when starting after releasing the handbrake is quite common. With over ten years of driving experience, I've encountered it several times. Most cases are due to rust on the brake discs, especially after rainy days or prolonged parking—rust spots rubbing against the wheels cause that screeching sound, which usually disappears after driving about a hundred meters. A stuck or incompletely released handbrake cable can also cause this, as metal components stick together and make noise when pulled apart during release. If the noise persists, it might indicate worn rear wheel bearings or loose suspension parts, which require immediate inspection to avoid safety risks. I recommend avoiding parking in damp areas for too long and choosing dry, well-ventilated spots instead. Monthly, take a quick look at the wheels for rust or dirt buildup, and gently clean the brake discs with mild detergent if necessary. Developing good habits like regular vehicle maintenance and annual handbrake system adjustments can significantly reduce such noise issues. Overall, minor problems shouldn’t cause panic, but they do require careful attention.
As a car enthusiast, I often study the causes of these unusual noises. The sound from the rear wheels after releasing the handbrake is primarily due to the handbrake not being released promptly, causing friction. Rust on the brake discs is the most common issue—rain or moisture can oxidize the disc surface, leading to a squeaking noise when starting as the rust particles are rubbed off, which usually clears after driving for a while. Aging or sticking handbrake cables can also be a culprit, where metal components deform or accumulate dust, preventing the brake from fully releasing. More serious issues include loose rear wheel bearings or suspension components, which can produce continuous noises. I recommend drivers lightly press the brake pedal to assist in releasing the handbrake before starting or regularly check brake pad thickness and lightly sand rust spots to prevent noise. On weather: humid climates increase rust risk, so parking in a garage or covering the wheels helps. Newer models with electronic handbrakes don’t have this issue, making them worth considering for an upgrade. If noises persist, seek professional diagnosis early to avoid costly repairs later.
I've been driving for thirty years, and the abnormal noise from the rear wheels after releasing the handbrake is mostly due to brake sticking or rust. Common scenarios include parking after rain or leaving the car idle for a long time, where the brake pads don't separate immediately after releasing the handbrake, causing friction noise. Short-distance driving may reduce the noise, but if the noise persists, check the handbrake cable tension or rear wheel bearing wear. It's recommended to lightly press the brake pedal a few times before starting to help release the brakes, and avoid pulling the handbrake too tightly when parking. Rust is more likely during rainy seasons, so try to avoid outdoor parking. Keep the vehicle clean to prevent mud accumulation from worsening the noise. Don't compromise on safety; timely maintenance can prevent minor issues from becoming major problems.
