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Front Suspension Clunking Noise on 2020 RLX Sport Hybrid

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Mike T. · rep 0 · May 26, 3:57 AM · 1 replies · solved · Question

Vehicle: 2020 Acura RLX Sport Hybrid

Hey guys,

I've noticed a persistent clunking noise coming from the front suspension of my 2020 Acura RLX Sport Hybrid, especially when going over speed bumps, potholes, or uneven pavement. It's not a constant noise, but it's definitely there on compression and rebound.

The car only has about 35,000 miles, which seems a bit early for major suspension components to be failing. I haven't hit any major potholes recently that I can recall. The ride quality still feels good otherwise, but the noise is starting to get on my nerves.

Has anyone with a newer RLX experienced similar front suspension noises? What was the culprit? I'm hoping it's something minor like sway bar links and not something more involved.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 3:57 AM

0

ClearTheCode admin answer:

A clunking noise from the front suspension of your 2020 Acura RLX Sport Hybrid, even at 35,000 miles, is definitely something to investigate. While the RLX is a robust vehicle, certain suspension components can wear prematurely or develop issues.

Common Causes:

  1. Sway Bar End Links: These are a very common source of clunking noises. The bushings or ball joints in the end links can wear out, causing play and noise, especially over uneven surfaces.
  2. Control Arm Bushings: The bushings in the upper or lower control arms can degrade, leading to metal-on-metal contact or excessive movement.
  3. Ball Joints: Worn ball joints (in the control arms or steering knuckle) can also cause clunking.
  4. Strut Mounts/Bearings: The top mounts of the struts, or the bearings within them, can wear out, leading to noise.
  5. Loose Components: Less common, but sometimes a suspension component or even a brake caliper can become slightly loose.

What to Do:

  1. Visual Inspection (Caution): If you're comfortable and have the right equipment, you can visually inspect the sway bar end links, control arm bushings, and ball joints for any signs of wear, cracks, or excessive play. Never get under a car supported only by a jack.
  2. Reproduce the Noise: Try to consistently reproduce the noise by driving over specific types of bumps at different speeds. This information will be valuable for a technician.
  3. Professional Inspection: The best course of action is to have a qualified mechanic or Acura dealership perform a thorough front suspension inspection. They will lift the vehicle, check for play in all joints and bushings, and can often pinpoint the exact source of the noise. They can also check for any relevant technical service bulletins (TSBs) from Acura that might address known issues.
  4. Address Promptly: While a clunking noise might seem minor, worn suspension components can affect handling, tire wear, and potentially lead to more significant issues if left unaddressed. There are no OBD codes typically associated with mechanical suspension noises.
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