What causes the squeaking noise resembling brakes after the car starts moving?
4 Answers
The main reason for the abnormal noise resembling brakes after the car starts moving is that the speed of releasing the brakes is too slow when starting. The specific reasons are as follows: 1. The cause of the noise is related to the brakes: The abnormal noise resembling brakes after the car starts moving is a normal phenomenon. Generally, when starting and releasing the brake pedal, the engine has sufficient power to drive the car forward, but the brake pedal is not completely released. This causes the moving wheels to be held by the brake system, resulting in abnormal noise. 2. The reason why manual transmissions do not produce such noise: When the brake is released in a manual transmission car, the transmission does not generate output power. By the time the vehicle starts moving, the brake has already been completely released, so no abnormal noise occurs.
I often tinker with my car and encounter squeaking sounds during startup, resembling brake noises. It's mostly due to rust on the brake discs, especially when parked in a basement or after rain in humid conditions, making the friction noise particularly noticeable during startup. I once experienced it firsthand—the sound disappeared after gently driving a few hundred meters. However, if the noise persists, it might indicate excessive brake pad wear, requiring thickness measurement and replacement. Alternatively, it could be due to loose or aging suspension bushings, causing squeaks over bumps. I recommend checking the tires and brake components yourself and using simple tools to remove rust as a preventive measure. Don’t forget regular maintenance, such as spraying anti-rust agents every six months to prolong lifespan. Ignoring this can accelerate brake disc damage, leading to soaring repair costs; it’s also important to dry the wheel hubs after parking to prevent moisture. Addressing startup noises saves money and ensures peace of mind.
I always feel nervous when driving on the road. Recently, there's been a squeaking sound whenever I start moving, like brake friction, and I'm especially worried about accidents. It might be a problem with the brake system, such as worn brake pads or rust. Another common issue could be aging rubber bushings in the suspension links, which make noise when vibrating. Once, my car made noise for a long time without repair, and the braking efficiency dropped, nearly causing a rear-end collision. I suggest stopping immediately to check basic items: first, see if there are any stones stuck in the wheels, and manually shake the front of the car to listen for the source of the noise. If that doesn't work, go to a professional shop. Addressing it early can make driving more reassuring. This kind of squeaking isn't just annoying—it can also increase fuel consumption or damage transmission components. Regular cleaning of brake discs can effectively prevent it, such as drying the wheel hub area after washing the car. Driving safety comes first, so don't hesitate to consult knowledgeable friends.
With over a decade of experience in car repair, I've handled countless cases of squeaking during startup. Common causes include excessively worn brake pads or gaps in the spring plates, which create friction similar to braking sounds. Additionally, rust or unevenness on the brake discs is particularly noticeable during startup; damaged control arm bushings in the suspension system can also cause squeaking. Inspection is straightforward: visually check the rust level on the brake discs—if slightly rusty, driving a few kilometers may stop the noise; persistent squeaking requires replacing the brake pads, measuring if the thickness is less than 3mm. For prevention, clean brake dust and accumulated dirt monthly, and avoid long-term parking in damp conditions. Neglecting these issues may lead to brake failure and increased repair costs; it's recommended that owners test brake sensitivity at very low speeds when unusual noises occur to confirm.
