why does my Toyota Highlander Fourth Generation (2020-present) make a knocking noise when turning?

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

507 words

Problem Statement

Learn how to diagnose and fix knocking noise when turning in Toyota Highlander. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the vehicle to cool before working on the suspension or brakes.

Symptoms

•Knocking sound when turning the steering wheel
•Noise increases with sharper turns
•Possible vibration felt through the steering wheel
•Difficulty in steering or increased effort required
•Uneven tire wear

Diagnostic Steps

1
Inspect the steering components for looseness or damage, including the tie rods and ball joints.
2
Check the condition of the suspension system, focusing on control arms, bushings, and struts.
3
Examine the CV joints and axles for wear or damage.
4
Look for any loose or damaged undercarriage components.
5
Test drive the vehicle to replicate the noise and assess under various turning 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

•Socket set
•Torque wrench
•Pry bar
•Jack and jack stands
•Wheel chocks

Parts Required

•Control arm (if damaged)
•CV axle (if worn)
•New axle nut

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Diagnostic Steps

1
Inspect the steering components for looseness or damage, including the tie rods and ball joints.
2
Check the condition of the suspension system, focusing on control arms, bushings, and struts.
3
Examine the CV joints and axles for wear or damage.
4
Look for any loose or damaged undercarriage components.
5
Test drive the vehicle to replicate the noise and assess under various turning conditions.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the battery for safety if working on electrical components.

2. Inspect and Replace Suspension Components

Inspect Control Arms and Bushings:
- Remove the wheel on the side where the noise occurs.
- Visually inspect the control arms and bushings for any signs of wear or damage.
- If damaged, proceed to replace the control arm.
Replace Control Arm:
- Remove the bolts securing the control arm to the frame and the steering knuckle.
- Install the new control arm by reversing the removal process.
- Tighten the bolts to manufacturer specifications (refer to service manual for torque values).

3. Check and Replace CV Joints

Inspect CV Joints:
- Inspect the CV joints and boots for any signs of cracks or leaks.
- If the boot is torn or the joint is worn, replace the CV axle.
Replace CV Axle:
- Remove the wheel and brake components for access.
- Disconnect the axle nut and remove the old axle from the differential and hub.
- Install the new CV axle and secure it with a new axle nut, tightening to specifications.

4. Reassemble and Replace Wheel

Reinstall any removed components, ensuring everything is tightened to correct specifications.
Reattach the wheel and perform a lug nut torque check.