⚙️SuspensionSeverity: MediumReading time: 5-10 mins

Suspension Noise

Written and maintained by AI Car MechanicUpdated October 17, 2026

Clunks, creaks and rattles over bumps typically come from worn sway bar links, bushings, strut mounts or shocks.

Can I drive it? Drive with care

Usually drivable, but worn parts affect handling and braking. Get it inspected.

Typical repair cost

$100-$300 for sway bar links, $300-$1,000 per axle for struts, $150-$500 for control arm bushings.

General US estimates, not quotes. Prices vary by region, vehicle and shop.

Symptoms to Look For

These signs indicate you might be experiencing this issue

  • Clunking when going over bumps
  • Squeaking when turning steering wheel
  • Rattling from underneath car
  • Excessive bouncing after bumps

Potential Causes

Most likely reasons for this problem, sorted by probability

1. Worn Struts/Shocks40%
2. Bad Control Arm Bushings30%
3. Broken Sway Bar Link30%

Repair Solutions

Step-by-step instructions to diagnose and fix the problem

1Bounce Test

Difficulty: EasyTime: 5 mins
  1. 1

    Push down hard on each corner of the car

  2. 2

    If it bounces more than 1-2 times after releasing, struts/shocks are likely worn

  3. 3

    Inspect visually for oil leaking from the shock absorber

Need professional help?

Find a repair shop near you, or describe your exact symptoms to the AI mechanic

When to See a Mechanic

Do not wait if any of these apply

  • The clunk is getting worse
  • The steering feels loose
  • The car bounces after bumps

How to Prevent It

Simple habits that stop this problem coming back

  • Avoid potholes
  • Inspect the suspension at tire rotations
  • Replace struts in pairs

Frequently Asked Questions

What causes a clunk over bumps?

Sway bar links, bushings and strut mounts are the most common causes.

Are creaking noises dangerous?

Dry bushings are often just annoying. A clunk with loose steering means a worn joint and needs a prompt check.

Related Issues

AI-generated and informational only. This is not a diagnosis of your specific vehicle and does not replace inspection by a qualified technician.