how to know if my Toyota Highlander struts are worn out

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

554 words

Problem Statement

Learn how to identify worn struts in your Toyota Highlander. Follow our step-by-step guide for diagnosis and replacement to ensure safe driving.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Use jack stands to prevent the vehicle from falling while you work underneath it.

Symptoms

•Excessive bouncing or swaying during driving
•Uneven tire wear
•Difficulty maintaining control during turns
•Nose diving when braking
•A noticeable increase in road noise or vibrations
•Fluid leakage around the strut assembly

Diagnostic Steps

1
Visually inspect the struts for any signs of physical damage or leakage.
2
Check the vehicle's ride height by measuring the distance from the wheel arch to the ground.
3
Perform a bounce test by pushing down on the front or rear of the vehicle and observing how it responds.
4
Inspect the tires for uneven wear patterns.
5
Listen for unusual noises when driving over bumps or during sharp turns.

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
•Lug wrench
•Socket set
•Torque wrench
•Strut compressor

Parts Required

•New struts (front or rear)
•New strut mounts (if needed)
•Sway bar links (if worn)

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Diagnostic Steps

1
Visually inspect the struts for any signs of physical damage or leakage.
2
Check the vehicle's ride height by measuring the distance from the wheel arch to the ground.
3
Perform a bounce test by pushing down on the front or rear of the vehicle and observing how it responds.
4
Inspect the tires for uneven wear patterns.
5
Listen for unusual noises when driving over bumps or during sharp turns.

Solution

1. Preparation

Gather tools: Jack, jack stands, lug wrench, socket set, torque wrench, strut compressor (if needed).
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the battery to avoid any electrical hazards.

2. Lift the Vehicle

Use the lug wrench to loosen the lug nuts on the front or rear wheels.
Lift the vehicle using the jack and secure it with jack stands.
Remove the wheels for access to the struts.

3. Remove Old Struts

Locate the strut assembly and remove any necessary components (brake lines, sway bar links) that may obstruct the strut.
Use a strut compressor to safely compress the coil spring if applicable.
Remove the bolts securing the strut to the steering knuckle and the upper mount.
Carefully detach the strut from the vehicle.

4. Install New Struts

Position the new strut in place, ensuring proper alignment with the mounting points.
Secure the strut to the steering knuckle and the upper mount with the appropriate fasteners.
Torque the bolts to the manufacturer’s specifications (usually between 50-70 ft-lbs for strut mounts and 30-40 ft-lbs for steering knuckle bolts).

5. Reassemble Components

Reattach any components that were removed during the strut removal (brake lines, sway bar links).
Reinstall the wheels and hand-tighten the lug nuts.

6. Lower the Vehicle

Carefully remove the jack stands and lower the vehicle back to the ground.
Torque the lug nuts to the manufacturer’s specifications (typically 76-86 ft-lbs).