![]() Having a bad ball joint affects your vehicle’s handling. Bad ball joints are one of the primary causes of unexpected clunky noises. If you’ve noticed rattling when driving over bumps, check whether your anti-roll bar drop links are worn out or whether they’ve snapped. Worn out shock absorbers/strutsĪnother common culprit of noise when going over bumps is worn-out shock absorbers and struts. Shocks are designed to absorb the impact of those inevitable bumps in the road. They won’t perform their functions correctly if worn out, hence the rattling. If your catalytic converter is damaged, rattling sounds are expected, as it contains small chambers that can become loose if worn out or faulty. When you drive over bumps, the engine movement will cause the chambers inside the converter to rattle against each other. Old sway bar bushingsīad sway bar bushings are often responsible for that annoying clunking noise underneath your car. If you’re noticing extra noise when going over bumps and when turning corners, your sway bar bushing may need replacing. ![]() If your exhaust pipe is exposed to moisture and other undesirable weather conditions, it will likely corrode. This can lead to a rattling noise from your exhaust. To diagnose the problem, you’ll need to determine where the rattling sound is coming from. ![]() This comprehensive guide is great for diagnosing and troubleshooting your car’s problem. Read on for the most likely cause of rattling from each area of your vehicle, from the steering wheel to the exhaust system. If you notice a clunking or rattling noise coming from your front wheels, it’s likely that a ball joint is failing or that a tie rod end has come loose. If the noise is coming from somewhere in the front end of your vehicle, it could be an issue with your struts, timing chain, or suspension system. Check for bad sway bar or control arm bushings. If the noise is coming from the back end of your car, it’s likely to be an issue with your suspension or a faulty catalytic converter. Chain rattling sound when driving over bumps It may also be down to exhaust pipe corrosion. How To Fix Rattle Noises Underneath A Car If you hear chain rattling or slapping noises when your car drives over bumps, you’re likely hearing a loose timing chain hit against its cover when it rotates. While repair techniques vary between different manufacturers and car models, there are a few steps you can take to identify those annoying rattling noises. You can read more about identifying suspension clunks and how to fix them. Whether you intend to carry out a home repair or take your vehicle to a trusted mechanic, this is the necessary first step toward getting your car in tip-top shape. Prepare to enjoy a smooth ride without the interruption of a rattling noise every time you drive over a bump! Check for known issuesīefore rolling up your sleeves to fix your car, check online for any TSBs (Technical Service Bulletins) related to your problem.
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