Why does my 2020 Highlander make a popping noise over bumps?

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

601 words

Problem Statement

Learn how to diagnose and repair the popping noise over bumps in your 2020 Toyota Highlander with our step-by-step guide.

Affected Component

suspension

Estimated Time

2-4 hours

Symptoms

•A noticeable popping or clunking sound when the vehicle goes over bumps or uneven surfaces.
•The noise may be more pronounced during low-speed maneuvers, such as driving over potholes or speed bumps.
•The sound may come from the front or rear of the vehicle, depending on where the issue lies.

Diagnostic Steps

1
Initial Inspection: Visual Check and Listen for Noise Source.
2
Check Suspension Components: Jack Up the Vehicle, Inspect Struts/Shocks, Control Arms and Bushings, Sway Bar Links.
3
Check for Loose or Missing Hardware: Inspect all suspension-related bolts and nuts, Exhaust System.
4
Road Test: Take the vehicle for a test drive over various road conditions.

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

•Floor jack
•Jack stands
•Wrench set (metric)
•Socket set (metric)
•Torque wrench
•Pry bar
•Rubber mallet
•Inspection mirror
•Flashlight

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Initial Inspection: Visual Check and Listen for Noise Source.
2
Check Suspension Components: Jack Up the Vehicle, Inspect Struts/Shocks, Control Arms and Bushings, Sway Bar Links.
3
Check for Loose or Missing Hardware: Inspect all suspension-related bolts and nuts, Exhaust System.
4
Road Test: Take the vehicle for a test drive over various road conditions.

Solution

Issue: Popping Noise Over Bumps in 2020 Toyota Highlander

Tools Required:

Floor jack
Jack stands
Wrench set (metric)
Socket set (metric)
Torque wrench
Pry bar
Rubber mallet
Inspection mirror
Flashlight

Repair Instructions:

Step 1: Address Strut or Shock Issues

Removal:
1. If the strut or shock is damaged, remove it by loosening the top mount bolts and the lower mounting bolts while the vehicle is jacked up.
2. Carefully pull the strut/shock out of its housing.
Installation:
1. Replace the strut or shock with a new part. Ensure that you use OEM or high-quality aftermarket parts.
2. Reinstall by reversing the removal steps. Torque the top mount and lower bolts to the manufacturer’s specifications.

Step 2: Replace Worn Bushings

Removal:
1. Use a pry bar to remove the control arm or sway bar link if the bushings are worn.
2. Replace the bushings with new ones, using a proper bushing tool if necessary.
Installation:
1. Reinstall the control arm or sway bar link. Ensure that all bolts are tightened to the manufacturer’s specifications.

Step 3: Secure Loose Components

Check and Tighten:
1. Go through all suspension components and tighten any loose bolts or nuts. Use a torque wrench to ensure they are set to the recommended specifications.

Step 4: Final Road Test

After repairs, take the vehicle for another test drive over similar bumps to ensure the popping noise has been resolved.

Conclusion:

If after following these steps the popping noise persists, it may be advisable to consult with a professional technician or take the vehicle to a dealership for further diagnosis, as there could be more complex issues in the suspension or chassis that require specialized equipment or expertise.