why is my Toyota Highlander XU70 (2020-Present) making a clunking noise when going over bumps

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a flat surface and engage the parking brake.
• Wear safety goggles and gloves for protection.

2. Raise the Vehicle

• Use a jack to lift the vehicle and securely place it on jack stands.
• Remove the wheels to gain access to the suspension components.

3. Inspect and Replace Components

• Shocks/Struts Replacement

  • Remove the bolts securing the lower end of the shocks/struts to the suspension assembly.
  • Remove the upper mounting bolts located under the hood.
  • Replace with new shocks/struts and torque to manufacturer specifications (usually about 30-40 ft-lbs).

• Sway Bar Link Replacement

  • Remove the bolts securing the sway bar links to the sway bar and lower control arm.
  • Install new sway bar links, ensuring they are tightened to manufacturer specifications.

• Control Arm/Bushing Replacement (if necessary)

  • Remove the bolts securing the control arm to the vehicle frame and the knuckle.
  • Replace the control arm/bushings if damaged and torque bolts to specifications (typically around 50-60 ft-lbs).

4. Reassemble and Lower the Vehicle

• Reinstall the wheels and hand-tighten lug nuts.
• Lower the vehicle from the jack stands and torque lug nuts to specification (usually 80-100 ft-lbs).

5. Test the Repair

• Perform a bounce test again to ensure the shocks/struts are functioning properly.
• Test drive over bumps to confirm that the clunking noise has been resolved.