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Why does my 2023 Toyota Highlander make a clunking noise over bumps? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/Why does my 2023 Toyota Highlander make a clunking noise over bumps?

Why does my 2023 Toyota Highlander make a clunking noise over bumps?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
591 words

Problem Statement

Learn how to diagnose and repair clunking noises in your 2023 Toyota Highlander, including symptoms, diagnostic steps, and necessary tools.

Affected Component
suspension
Estimated Time
2-4 hours

Symptoms

  • •Clunking noise from the front or rear of the vehicle when driving over bumps or rough terrain.
  • •Noise may be more pronounced during acceleration or deceleration.
  • •Possible vibrations felt through the chassis.
  • •No noticeable change in steering or braking performance.

Diagnostic Steps

  1. 1
  2. 2
  3. 3

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Flashlight
  • •Safety gloves
  • •Jack and jack stands
  • •Torque wrench
  • •Socket set
  • •Wrench set
  • •Spring compressor

Additional Information

Affected Component
suspension
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
7 items

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Back to Generation
Problem Overview
Possible Causes
  • Worn or damaged suspension components (shocks, struts, bushings).
  • Loose or damaged exhaust system components.
  • Issues with the undercarriage or frame.
  • Loose or damaged components in the wheel assembly.
Step 1: Visual Inspection

Tools Required:

  • Flashlight
  • Safety gloves
  • Jack and jack stands
  • Torque wrench

  1. Prepare the Vehicle:

    • Park the vehicle on a level surface.
    • Engage the parking brake and turn off the engine.
    • Raise the vehicle using a jack and secure it with jack stands.

  2. Inspect Suspension Components:

    • Check for any visible signs of damage or wear in the following components:
      • Shocks and struts: Look for oil leakage or physical damage.
      • Control arms and bushings: Check for cracked or worn bushings.
      • Sway bar links: Inspect for wear or looseness.

  3. Examine the Exhaust System:

    • Inspect the exhaust pipes and hangers for any loose or broken parts that could create noise.
    • Ensure that the exhaust system is securely mounted and not in contact with the chassis.

  4. Check Wheel Assembly:

    • Inspect wheel bearings for play by rocking the wheel back and forth.
    • Check lug nut torque; ensure all are properly tightened to specification.
Step 2: Test Drive

  1. Perform a Test Drive:

    • Drive the vehicle over various road surfaces, including bumps and potholes, to reproduce the noise.
    • Note the conditions under which the noise occurs (e.g., turning, braking, accelerating).

  2. Listen for the Noise:

    • Isolate the location of the noise (front vs. rear) and whether it occurs consistently or intermittently.
Step 3: Verify Findings
  • If the clunking noise persists and the visual inspection does not reveal any obvious issues, further investigation may be required.
Repair Instructions
If Worn Suspension Components are Found:

Tools Required:

  • Socket set
  • Wrench set
  • Torque wrench
  • Spring compressor (if replacing struts)
  • New suspension parts (if applicable)

  1. Replace Worn Shocks/Struts:

    • Remove the wheel.
    • Support the suspension with a jack.
    • Remove the bolts securing the shock/strut assembly.
    • Detach the assembly from the upper mounting points in the engine bay.
    • Install new shocks/struts in reverse order.
    • Torque bolts to specified settings.

  2. Replace Worn Bushings or Control Arms:

    • Remove the corresponding suspension components as needed to access bushings.
    • Use a bushing press or appropriate tools to remove and install new bushings.
    • Reassemble and torque to specifications.
If Loose Components are Found:

  1. Tighten Loose Bolts:

    • Check all suspension and exhaust mounting bolts and tighten to factory specifications.

  2. Replace Any Damaged Components:

    • Follow the same procedure as above to remove and replace any damaged components.
Final Steps

  1. Reinstall the Wheel:

    • Torque wheel lug nuts to the manufacturer’s specifications.

  2. Lower the Vehicle:

    • Carefully remove jack stands and lower the vehicle.

  3. Perform a Final Test Drive:

    • Drive the vehicle again to ensure that the clunking noise has been resolved.
Additional Notes
  • If the noise persists after addressing the above components, consider having a professional mechanic perform a more in-depth inspection.
  • Regular maintenance of the suspension system can help prevent future issues.