2012 Lexus ES350 Has A Rattling Noise

Identifying the Causes of Rattling Noises in Your 2012 Lexus ES350 and How to Resolve Them

Find Repair Location
Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
28% chance it's the
Ball Joints
0%
16% chance it's the
Struts or Strut Mount
0%
12% chance it's the
Sway Bar Links
0%
44% chance it's
Something else
The most common reasons a 2012 Lexus ES350 has a rattling noise are the ball joints, struts or strut mount, or a problem with the sway bar links.
  • Ball Joints: Worn or damaged ball joints can lead to poor steering control and uneven tire wear due to compromised suspension geometry.
  • Struts or Strut Mount: A worn or damaged strut or strut mount can result in poor ride quality, excessive noise, and uneven tire wear.
  • Sway Bar Links: A worn or damaged sway bar link can result in excessive body roll and clunking noises during turns.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What steps should I take to diagnose the rattling noise in my 2012 Lexus ES350?

To effectively diagnose the rattling noise in your 2012 Lexus ES350, start by identifying the source of the sound. Pay close attention to whether the noise originates from the front of the engine, the rear of the vehicle, or another area. Once you have a general location, check common culprits such as ball joints, struts, sway bar links, and the tensioner pulley bearing, as these are frequent sources of rattling in this model. Next, inspect the engine for any loose or worn timing chains, which can also contribute to rattling noises. Don’t forget to examine the suspension components, including ball joints and struts, for signs of wear or damage. It’s also helpful to test the vehicle when it’s cold, as some noises may be more pronounced under these conditions. If you find it challenging to pinpoint the issue or feel uncertain about your findings, consulting a certified mechanic for a professional assessment is a wise choice. By following this diagnostic approach, you can systematically address the rattling noise and ensure your Lexus ES350 runs smoothly.

What are the common causes of a rattling noise in a 2012 Lexus ES350?

When dealing with a rattling noise in your 2012 Lexus ES350, it's essential to consider several common problems that could be at play. One of the primary culprits could be the ball joints, struts, or strut mounts, which are critical for maintaining vehicle stability and can produce a noticeable rattle when worn or damaged. Additionally, sway bar links are another frequent source of rattling; if they are loose or failing, they can create unsettling noises, especially when navigating bumps or turns. It's also worth checking the timing belt, as a loud squealing or squeaking sound may indicate that it is worn or misaligned. Furthermore, a maladjusted valve train can lead to ticking noises, which might be mistaken for a rattle. Lastly, if the timing chain has slack due to worn guides or tensioners, it can produce a ticking sound that may escalate into more severe engine issues if left unaddressed. By systematically examining these components, you can effectively diagnose the source of the rattling noise and take appropriate action to resolve it.

How urgent is it to address the rattling noise in my 2012 Lexus ES350?

When it comes to the rattling noise in your 2012 Lexus ES350, the urgency of addressing the issue cannot be overstated. Ignoring such noises can lead to serious safety concerns, especially if the source is linked to critical components like the suspension or brakes. Rattling can stem from various causes, including loose heat shields or worn suspension parts, which, if left unchecked, may escalate into more significant problems and costly repairs. By promptly identifying and addressing the source of the noise, you not only enhance your vehicle's safety but also prevent further damage that could lead to more extensive and expensive repairs down the line. Therefore, it is advisable to have a professional mechanic conduct a thorough inspection to diagnose the issue accurately and recommend the necessary repairs, ensuring your Lexus remains in optimal condition.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.