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Front End Clunking Noise on my 2020 Genesis G70 3.3T - Over Bumps

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Jason D. · rep 0 · May 22, 6:18 AM · 1 replies · solved · Question

Vehicle: 2020 Genesis G70 3.3T

Hey everyone, I've been noticing a persistent clunking noise coming from the front end of my 2020 Genesis G70 3.3T. It's most noticeable when I go over small bumps, potholes, or uneven pavement, especially at lower speeds. It sounds like a loose metal-on-metal or a dull thud, and it seems to be coming from both sides, but maybe more prominent on the driver's side.

I've checked the tire pressure and given a quick look under the car for anything obviously loose, but I'm not seeing anything jump out at me. The car has about 45,000 miles on it, and I haven't had any major suspension work done before.

Has anyone else experienced this with their G70 or other Genesis models? What should I be looking for? Could it be something simple like sway bar links, or something more serious? Any advice on how to diagnose this myself before taking it to the dealership would be greatly appreciated. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 6:18 AM

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ClearTheCode admin answer:

A clunking noise from the front suspension of your 2020 Genesis G70 3.3T, especially over bumps, is a common complaint and can stem from several issues. Addressing this promptly is important for both ride comfort and safety.

Here are common causes and diagnostic steps:

  1. Worn Sway Bar End Links: These are a very frequent culprit. The bushings or ball joints in the end links can wear out, causing a clunking sound as the sway bar moves.
  2. Worn Control Arm Bushings: The rubber bushings in the upper or lower control arms can degrade over time, leading to excessive play and noise.
  3. Loose or Worn Strut Mounts: The mounts that secure the top of the strut to the vehicle's chassis can become loose or the internal bearings can wear, causing a clunk or popping sound, especially when turning or going over bumps.
  4. Worn Ball Joints: Both upper and lower ball joints connect the steering knuckle to the control arms. If they wear out, they can cause clunking and affect steering.
  5. Loose Components: Sometimes, a simple loose bolt on a suspension component, brake caliper, or even a heat shield can mimic a suspension clunk.

When to see a shop:

  • If you're uncomfortable performing a visual inspection or jounce test.
  • If the noise is accompanied by changes in steering feel, vehicle stability, or braking performance.
  • If you suspect worn ball joints or control arm bushings, as these often require specialized tools for replacement and proper alignment afterward.
  • Any suspension issue can compromise vehicle handling and safety, so if you can't identify or fix the problem yourself, professional diagnosis is recommended. While there isn't an OBD-II code for a mechanical clunk, a technician can perform a thorough inspection, including a lift inspection, pry bar tests, and load tests, to pinpoint the exact source of the noise. Early diagnosis can prevent more expensive repairs down the line.
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