how to tell if my Toyota Highlander Fourth Generation (2020-present) struts are worn out

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

566 words

Problem Statement

Learn how to diagnose and replace worn struts on your 2020-2023 Toyota Highlander. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is stable on jack stands before working underneath.
•Always disconnect the battery before working on electrical components.
•Allow the vehicle to cool down before working on the suspension system.

Symptoms

•Excessive bouncing or swaying during driving
•Uneven tire wear
•Difficulty maintaining control on rough or bumpy roads
•Clunking or knocking noises over bumps
•Sagging rear or front end of the vehicle
•Increased stopping distance

Diagnostic Steps

1
Examine the struts for any signs of physical damage, such as leaks or rust.
2
Push down hard on each corner of the vehicle and release. Observe how many times the vehicle bounces before settling.
3
Drive the vehicle over bumps and listen for any abnormal noises or sensations.
4
Inspect tire tread for uneven wear patterns which may indicate strut issues.
5
Compare the height of the vehicle from the ground to the wheel arch against manufacturer specifications.
6
Look for wear or damage on the mounts that could affect strut performance.

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

•Jack
•Jack stands
•Socket set
•Torque wrench

Parts Required

•Replacement struts (front and/or rear as needed)
•Strut mounts (if required)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Examine the struts for any signs of physical damage, such as leaks or rust.
2
Push down hard on each corner of the vehicle and release. Observe how many times the vehicle bounces before settling.
3
Drive the vehicle over bumps and listen for any abnormal noises or sensations.
4
Inspect tire tread for uneven wear patterns which may indicate strut issues.
5
Compare the height of the vehicle from the ground to the wheel arch against manufacturer specifications.
6
Look for wear or damage on the mounts that could affect strut performance.

Solution

1. Preparation

Gather tools and materials such as a jack, jack stands, socket set, torque wrench, and replacement struts.
Ensure the vehicle is parked on a flat surface, and the ignition is turned off.

2. Lift the Vehicle

Sub-steps:
1. Use the jack to lift the vehicle from the designated lift points.
2. Securely place jack stands under the vehicle for safety.
Tools Required: Jack, jack stands.
Safety Warnings: Ensure the vehicle is stable on jack stands before working underneath.

3. Remove the Old Struts

Sub-steps:
1. Remove the wheel to access the strut assembly.
2. Detach the strut from the lower control arm by removing the mounting bolts.
3. Remove the upper strut mounting nuts from inside the engine compartment.
4. Carefully pull the strut assembly out from the wheel well.
Tools Required: Socket set, wrench set.

4. Install New Struts

Sub-steps:
1. Position the new strut assembly into the wheel well.
2. Secure the upper strut mount with nuts and torque to manufacturer specifications.
3. Attach the strut to the lower control arm and tighten the bolts to the specified torque.
4. Reinstall the wheel and lower the vehicle.
Tools Required: Socket set, torque wrench.

5. Final Checks

Sub-steps:
1. Once the vehicle is back on the ground, check the ride height.
2. Test drive the vehicle to ensure proper function and comfort.
Tools Required: None specific for this step.