What Causes the Abnormal Noise When a Car Goes Over Bumpy Roads?

[MacLeonardo]

There are several main reasons why a car makes abnormal noises when going over bumpy roads: 1. Rhythmic noise, which may be caused by friction between the brake pads and the brake disc due to too small a gap. 2. Continuous noise, which may indicate a damaged bearing. 3. Continuous noise, which may suggest an issue with the drive shaft. Below is an introduction to other aspects: Noise from the door hinges. After prolonged use, the friction of the hinges can significantly increase, leading to abnormal noises. What we need to do is apply lubricating grease, such as Hotolube's door hinge grease, which is the lubricant used in 4S maintenance. This will greatly reduce friction and eliminate the door noise. The maintenance cycle is three to four months.

[CassidyAnn]

That day my car made annoying creaking sounds when going over speed bumps! I thought about it, and this is a pretty common issue—it's likely a problem with the suspension system, like worn-out shock absorbers or a loose sway bar. Worn rubber bushings under the chassis can also cause clunking noises, making it sound like a junker. If your car is older, misaligned or loose wheels and rims can make metal parts clatter louder over bumps. My suggestion is to check it yourself first: have a friend drive while you sit in the back seat and listen for where the noise is coming from, or after parking, shake the wheels to see if there's any wobble. Don’t ignore these little noises—if left unfixed, a failing suspension can lead to loss of control, especially dangerous at high speeds. I’ve seen plenty of owners delay repairs only to end up spending big later. It’s way better to just take it to a shop early for a quick check—saves time and hassle.

[MacLogan]

I've encountered this issue several times - squeaking noises whenever going over bumps, as if the whole car is protesting! Looking back, most cases are caused by worn chassis components, like loose suspension arm joints or rusted stabilizer bars. Also, worn tie rods in the steering system can produce alarming creaking sounds during turns. I must warn you - abnormal noises aren't trivial; they may indicate risks of component failure, like brake system malfunction which could be dangerous. For DIY checks, you can gently tap different parts to listen for hollow sounds, but avoid forced disassembly. Best to have technicians inspect during maintenance - often just replacing rubber components solves it. Drive slowly over potholes regularly and wash the undercarriage to prevent corrosion - these habits reduce noises and maintain driving safety.

[MacCali]

I find the rattling noise when driving over bumpy roads to be a real headache. Last week, my old car had this issue, and after inspection, it turned out to be leaking shock absorbers in the suspension system, causing constant creaking sounds over bumps. There could be other reasons too: rusted chassis or worn-out buffer blocks leading to direct metal friction; loose wheel axles or excessive steering column gaps making the noise more noticeable during turns. I tried to locate the sound and found it loudest near the front wheels. Don't hesitate—get it checked at a professional shop immediately. Delaying could lead to complete shock absorber failure and skyrocketing repair costs. Regular maintenance like monthly chassis cleaning can extend component lifespan.