Clunking Noise from Front Suspension on 2020 Acura RDX Advance

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Mike T. · rep 0 · May 22, 4:57 AM · 1 replies · solved · Question

Vehicle: 2020 Acura RDX Advance

Hello Acura community,

I'm reaching out about a concerning noise coming from the front end of my 2020 Acura RDX Advance. Over the past month or so, I've noticed a distinct clunking or rattling sound, especially when going over speed bumps, potholes, or uneven pavement at low speeds. It seems to be more prominent on the driver's side, but it's hard to pinpoint exactly.

The car has about 45,000 miles on it, and I haven't had any major suspension work done. The steering feels fine, and there's no noticeable pulling, but the noise is definitely getting worse and makes the car feel less solid. Has anyone else experienced this with their RDX? What should I be looking for?

✓ Accepted solution

ClearTheCode Admin

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ClearTheCode admin answer:

A clunking or rattling noise from the front suspension, especially over bumps, is a common complaint and usually indicates wear in one or more suspension components. For your 2020 Acura RDX, here are the most likely culprits:

  1. Sway Bar End Links: These are very common failure points. The ball joints on the end links can wear out, causing a clunking sound as the sway bar moves independently over bumps. This often sounds like it's coming from the driver's side.
  2. Lower Ball Joints: Worn lower ball joints can also produce a clunking noise, particularly when the suspension articulates. This is a critical safety component, so it needs prompt attention.
  3. Control Arm Bushings: The rubber bushings in the control arms can crack or degrade over time, leading to metal-on-metal contact and clunking sounds. This can also affect alignment and tire wear.
  4. Strut Mounts/Bearings: The top strut mounts or their bearings can wear out, causing a clunk or thud, especially when turning the steering wheel or going over bumps. Sometimes, the spring itself can make noise if it's not seated correctly.
  5. Loose Components: Less common, but check for any loose bolts on suspension components, or even something as simple as a loose heat shield or splash guard.

When to see a shop:

  • Immediately if you notice any changes in steering feel, excessive play in the steering wheel, or uneven tire wear, as these could indicate a more serious safety issue.
  • If you're not comfortable inspecting suspension components yourself, or if you can't pinpoint the source of the noise.
  • A professional can perform a thorough suspension inspection, including a 'shake test' to identify worn components.

Recommended Steps:

  1. Visual Inspection: With the car safely jacked up and supported, visually inspect the sway bar end links, control arm bushings, and ball joints for any signs of wear, cracks, or excessive play.
  2. Listen Carefully: Try to have someone bounce the front of the car while you listen closely to narrow down the area of the noise.
  3. Check for Play: Grab the wheel at 12 and 6 o'clock, then 3 and 9 o'clock, and try to rock it. Any significant play could indicate worn ball joints or wheel bearings (though wheel bearings usually hum).

Addressing suspension noises promptly is important not only for comfort but also for maintaining the safety and handling characteristics of your RDX.