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Front Suspension Clunking Noise on 2020 Nautilus Reserve

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Nicole W. · rep 0 · May 22, 6:05 AM · 1 replies · solved · Question

Vehicle: 2020 Lincoln Nautilus Reserve

Hey everyone,

I've been noticing a persistent clunking noise coming from the front end of my 2020 Lincoln Nautilus Reserve. It's most noticeable when I go over speed bumps, potholes, or any uneven road surfaces. It sounds like a single, sharp clunk, sometimes from the driver's side, sometimes from both.

I'm wondering if anyone else with a Nautilus, especially from the 2016-2026 model years, has experienced something similar? What were the common culprits you found? I'm trying to get an idea of what to look for before I take it into the shop.

Are there any easy checks I can do myself to narrow down the problem? I'm hoping it's something relatively minor like sway bar links, but I'm open to any suggestions. Thanks in advance!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 6:05 AM

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ClearTheCode admin answer: A clunking noise from the front suspension, especially over bumps, is a common complaint and can stem from several issues. It's important to address this promptly as it can affect ride quality and potentially safety.

Here are common causes and diagnostic steps:

  1. Worn Sway Bar Links/Bushings: These are very common culprits. The links connect the sway bar to the control arms, and their bushings can wear out, causing metal-on-metal contact or looseness that results in a clunk.
  2. Control Arm Bushings: The bushings where the control arms attach to the chassis or steering knuckle can degrade, allowing excessive movement and noise.
  3. Strut Mounts/Bearings: The top mount of the strut assembly can wear out, leading to noise, especially when turning or going over bumps. The strut bearing can also fail.
  4. Ball Joints: While less common for just a clunk over bumps, worn lower or upper ball joints can also contribute to front end noise.
  5. Loose Lug Nuts: Though simple, always double-check that your wheel lug nuts are properly torqued.

Diagnostic Steps You Can Take:

  • Visual Inspection: With the vehicle safely supported on jack stands, visually inspect the sway bar links, control arm bushings, and strut mounts for any signs of wear, tears, or looseness. Look for grease leaking from ball joint boots.
  • "Bounce Test": Push down firmly on each corner of the front end and release. Listen for the clunk as the suspension compresses and rebounds.
  • Check for Play: With the wheel off the ground, try to move the wheel side-to-side and top-to-bottom to check for play in ball joints or wheel bearings.
  • OBD Scan: While suspension issues don't always trigger powertrain codes (P-codes), a sophisticated OBD-II scanner capable of reading chassis control module (CCM) codes (C-codes) might reveal issues with adaptive suspension components if your Nautilus is equipped with them.

When to See a Shop: If the noise persists, worsens, or if you notice any changes in steering feel, braking performance, or vehicle stability, it's crucial to have a qualified mechanic inspect the suspension immediately. Worn suspension components can compromise vehicle handling and safety. Early diagnosis can prevent more extensive and costly repairs down the line.

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