how to identify worn out struts in my Toyota Highlander Third Generation (2014-2019)

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

633 words

Problem Statement

Learn how to identify and replace worn out struts in your 2014-2019 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

•Always work on a level surface and ensure the vehicle is securely supported on jack stands.
•Wear safety glasses and gloves during the repair.

Symptoms

•Excessive bouncing or swaying while driving
•Uneven tire wear, particularly on the inner or outer edges
•A noticeable decrease in ride comfort or harshness over bumps
•Fluid leakage from strut assembly
•Vehicle tip or squat during acceleration or braking
•Clunking or knocking noises when going over bumps

Diagnostic Steps

1
Check for any visible signs of leakage or damage on the struts.
2
Push down on the front or rear of the vehicle and observe how many times it bounces before settling.
3
Examine the tires for uneven wear patterns that could indicate strut issues.
4
Drive the vehicle over bumps and listen for any clunking sounds that may suggest worn struts.
5
Verify if the vehicle is pulling to one side, which could indicate strut wear affecting alignment.
6
Examine the strut mounts for wear or damage, as this can 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 and jack stands
•Socket set
•Torque wrench
•Strut spring compressor
•Wrench set

Parts Required

•Replacement struts
•New strut mounts (if necessary)

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Symptoms

•Excessive bouncing or swaying while driving

•Uneven tire wear, particularly on the inner or outer edges

•A noticeable decrease in ride comfort or harshness over bumps

•Fluid leakage from strut assembly

•Vehicle tip or squat during acceleration or braking

•Clunking or knocking noises when going over bumps

Diagnostic Steps

1
Check for any visible signs of leakage or damage on the struts.
2
Push down on the front or rear of the vehicle and observe how many times it bounces before settling.
3
Examine the tires for uneven wear patterns that could indicate strut issues.
4
Drive the vehicle over bumps and listen for any clunking sounds that may suggest worn struts.
5
Verify if the vehicle is pulling to one side, which could indicate strut wear affecting alignment.
6
Examine the strut mounts for wear or damage, as this can affect strut performance.

Solution

1. Preparation

Tools Required:
- Jack and jack stands
- Socket set
- Torque wrench
- Strut spring compressor
- Wrench set
Safety Warnings:
- Always work on a level surface and ensure the vehicle is securely supported on jack stands.
- Wear safety glasses and gloves during the repair.

2. Remove the Strut Assembly

Lift the Vehicle: Use a jack to raise the vehicle and secure it with jack stands.
Remove the Wheel: Use a socket set to take off the lug nuts and remove the wheel.
Disconnect Components: Remove any components obstructing the strut assembly, such as brake lines or sway bar links.
Unbolt the Strut: Use a wrench to remove the bolts securing the strut to the steering knuckle and the top mount.
Take out the Strut Assembly: Carefully pull the strut assembly out from the wheel well.

3. Replace or Repair the Strut

Compress the Coil Spring: Use a strut spring compressor to safely compress the coil spring on the strut.
Remove the Top Mount: Unbolt the top mount from the strut using a socket.
Inspect Components: Check the strut for signs of wear or leakage and inspect the top mount and bearing for damage.
Install New Strut: If replacing, install the new strut into the spring compressor, attach the top mount, and torque to manufacturer's specifications.
Reassemble Strut: Reinsert the strut into the vehicle and secure it to the top mount and the steering knuckle. Torque the bolts to the recommended values.

4. Reinstall Wheel and Lower Vehicle

Reattach Wheel: Put the wheel back on and hand-tighten the lug nuts.
Lower Vehicle: Carefully remove the jack stands and lower the vehicle to the ground.
Torque Lug Nuts: Use a torque wrench to tighten the lug nuts to the manufacturer's specifications.