Troubleshooting
Why Does My Car Make a Clunking Noise Over Bumps?
Clunking noises over bumps often suggest wear or looseness within the suspension system.
Learn how to recognise common suspension noises and identify when further inspection is needed.
Quick Answer
A clunking noise when driving over bumps often indicates movement between suspension or steering components that should normally remain securely controlled. The source may be something relatively minor, such as a worn stabiliser link, or a more significant issue involving suspension joints, bushings, mounts, or steering components. Because many suspension parts affect vehicle control as well as comfort, persistent noises should be investigated rather than ignored.
Likely Causes
- Worn stabiliser bar links.
- Damaged suspension bushings.
- Worn ball joints.
- Worn strut mounts.
- Loose suspension fasteners.
What to Check
- Listen for which side of the vehicle produces the noise.
- Inspect bushings and rubber components for cracking.
- Check suspension joints for excessive movement.
- Look for visible damage underneath the vehicle.
What the Symptoms May Tell You
- Single clunks may indicate mounting wear.
- Repeated rattles can point to stabiliser links.
- Noise combined with poor handling may indicate more extensive suspension wear.
When to Get Professional Help
- Noise becomes louder over time.
- Steering stability changes.
- Suspension components show visible wear.
- Vehicle handling feels unpredictable.
Sources
- Monroe — Technical Resources & Installation Guides — Monroe Technical Resources [monroe.com]
- KYB Americas — Instruction Resources — KYB Technical Information
FAQs
- Can a small suspension noise become a bigger problem?
- Yes. Some worn components can deteriorate further and affect handling or tyre wear.
- Does every clunk mean a major repair is needed?
- No. Some noises may be caused by relatively inexpensive wear items, but proper inspection is still important.
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