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What Causes the Squeaking Sound in a Car?

4 Answers
PeterLynn
07/29/25 5:07am

The causes of squeaking sounds in a car are: 1. Damaged shock absorber: When the vehicle's shock absorber is damaged, due to coordination issues between its components, it will produce squeaking noises when operating on bumpy roads. 2. Damaged suspension spring: When the shock absorber top mount wears out excessively and gets damaged, besides generating abnormal noises during operation, even when the shock absorber is not working, turning the steering wheel while stationary can also cause noises. The shock absorber and elastic elements bear the tasks of cushioning impacts and absorbing shocks. Excessive damping force will deteriorate the suspension elasticity and may even damage the shock absorber connecting parts. The suspension spring is used to control continuous fluid vibration excitations (such as fluid pulsation, two-phase flow, high-speed flow, and wind-induced vibration) in the piping system vibration.

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DiBrady
08/12/25 6:31pm

After driving for so many years, squeaky noises from the car are all too common. Most of the time, it's an issue with the belts—like the alternator belt or AC belt aging, becoming loose or cracked, which causes friction against the pulleys and produces noise. The sound is most noticeable when starting the car. If you hear a squeak, the first thing to do is pop the hood and check the belts. If left unattended, a broken belt means the battery won’t charge, and the car could stall on the road. Another common culprit is worn brake pads—if the squeaking gets louder when braking, it’s a sign of reduced braking performance. It’s best to get it checked ASAP to avoid a minor issue turning into a major repair. Regular maintenance, where a mechanic inspects the belts and brakes, can save you both hassle and money.

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DiBarrett
10/03/25 5:24am

I remember when I first started driving, hearing squeaking sounds would make me nervous. Now I understand that this is likely a sign of brake system issues. When the brake pads wear thin, the metal inside scrapes against the brake discs, causing constant squeaking when starting or slowing down. Frequent braking in city traffic makes the noise even more annoying. Don't ignore it—not only is the noise bothersome, but longer braking distances are more dangerous. A simple solution is to check if any warning lights are on the dashboard or to stop and test the brakes by listening for sounds. It's advisable to visit a repair shop as soon as possible to get it checked. Replacing the brake pads will solve the problem, ensuring safe and worry-free driving.

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LucasLee
11/16/25 7:04am

I love tinkering with my car myself, and when I hear a squeaking sound, the first thing I think of is a suspension issue. If the noise is louder when going over speed bumps or rough roads, it means the shock absorbers or suspension arms need lubrication. Kick the tires with your foot to see if there's any looseness. A faulty steering gear bearing can also cause this, with the squeaking sound becoming clearer when turning. Checking it yourself is simple: shake the wheel by hand or spray some household lubricant to test the effect. But if there's no improvement, it's best to consult a professional to avoid DIY mistakes that could damage parts. Always pay attention to road conditions while driving, and if the noise gets louder, stop and investigate.

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