Hearing a clunk every time your car goes over a bump can be both annoying and concerning. That sound isn’t just random and usually points to a worn or damaged part in your suspension or steering system. While the noise might seem minor at first, it can be a sign of an issue that will affect your ride quality, safety, and even tire wear if left unchecked.
If you're wondering where that clunk is coming from and whether it's serious, here’s a breakdown of the most likely causes and what you should do next.
Suspension Components Are Often the Culprit
Your car’s suspension is designed to absorb shocks, keep the tires in contact with the road, and ensure a smooth ride. But over time, those parts can wear out or loosen. When they do, they may start making noises every time you drive over uneven pavement.
Some of the most common suspension-related causes of clunking noises include:
- Worn ball joints: These connect the control arms to the steering knuckles and allow smooth movement. When they wear out, they can knock or clunk over bumps.
- Damaged control arm bushings: These rubber components absorb road vibrations. If they become cracked or loose, they can create a loud clunking noise.
- Bad struts or shocks: If the internal components are worn, they may bottom out or make noise during compression.
- Loose sway bar links or bushings: These keep the car stable in turns. If they’re worn or detached, they can produce a sharp clunk when the suspension moves.
Steering System Issues Can Add to the Noise
While suspension issues are common, the steering system should also be inspected. If your vehicle’s steering rack mounts, tie rods, or other parts are worn or loose, the impact of a bump can cause noticeable noise.
This type of clunk may also be accompanied by changes in how your steering feels, such as extra play in the wheel or reduced response when turning.
Something Is Loose or Broken
Sometimes, a clunking noise is caused by a component that simply comes loose. This could be an exhaust hanger, heat shield, brake caliper bracket, or even a skid plate. These parts can rattle or clunk if they’re no longer securely fastened.
It’s also worth checking for items in the trunk, glove box, or under seats that could be moving around and mimicking mechanical noises. If the sound happens consistently when driving over bumps and gets worse with time, it’s more likely a mechanical issue.
Don’t Ignore the Signs
Even if the car still feels like it’s driving normally, a clunking noise should never be ignored. A failing suspension or steering component can eventually affect your ability to control the vehicle, especially in emergency situations or during hard braking.
In some cases, continuing to drive with a damaged part can lead to further damage to other components or uneven tire wear that shortens the life of your tires.
When Should You Schedule a Checkup?
If the clunking happens regularly, and especially if it seems to be getting louder, it’s a good time to bring your vehicle in for an inspection. Other signs that you shouldn’t wait include:
- Steering feels loose or wobbly
- The vehicle pulls to one side
- Tire wear is uneven or unusual
- You feel more bumps and jolts than usual
Our qualified technicians will check the entire suspension and steering system for signs of wear, damage, or looseness. In many cases, the fix can be straightforward, such as replacing a bushing, ball joint, or sway bar link.
KLM Auto Center – Clunk-Free Rides in Marietta, GA
At KLM Auto Center in Marietta, we’ll get to the bottom of that clunking noise quickly and make sure your suspension and steering systems are in top shape. Our technicians know how to spot wear before it leads to bigger issues and will get your ride back to smooth and quiet.
Schedule your appointment today for a full suspension check, and let us help keep your drive safe and comfortable.