Why is my 2020 Toyota Highlander making a popping noise when turning?

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

620 words

Problem Statement

Learn how to diagnose and repair the popping noise in your 2020 Toyota Highlander, including symptoms, diagnostic steps, and required tools.

Affected Component

CV Joint, Suspension, Steering

Estimated Time

2-4 hours

Symptoms

•Popping Noise during turns
•Vibration
•Clunking sounds
•Pulling sensation while turning

Diagnostic Steps

1
Visual Inspection of CV joints, suspension components, steering components, and tires
2
Road Test to replicate popping noise
3
Further diagnosis of CV joint and suspension components

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 (10mm, 12mm, 14mm sockets)
•Torque wrench
•Pry bar
•Screwdrivers (flat and Phillips)
•Mechanic's gloves
•Safety glasses
•Stethoscope or mechanic’s listening device (optional)

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Diagnosis and Repair of Popping Noise in 2020 Toyota Highlander

Potential Causes

CV Joint Issue
Suspension Component Failure
Steering System Problems
Tire Issues

Tools Required

Jack and jack stands
Socket set (including 10mm, 12mm, and 14mm sockets)
Torque wrench
Pry bar
Screwdrivers (flat and Phillips)
Mechanic's gloves
Safety glasses
Stethoscope or mechanic’s listening device (optional)

Step 1: Visual Inspection

Raise the Vehicle:
- Use a jack to lift the front of the vehicle and securely place it on jack stands.
Inspect CV Joints:
- Examine the CV boots for tears or leaks. A torn boot can allow dirt and moisture into the joint, leading to failure.
- Check for any play in the CV joints by attempting to wiggle the axle while holding the wheel steady.
Examine Suspension Components:
- Inspect control arms, ball joints, tie rods, and bushings for wear or damage.
- Look for any rust or corrosion that may indicate failure.
Check Steering Components:
- Inspect the steering rack and tie rods for any signs of wear or damage.
Inspect Tires:
- Check tire tread for uneven wear or damage.
- Look for any signs of debris stuck in the tread that could create noise.

Step 2: Road Test

Perform a Road Test:
- Drive the vehicle in a safe area and replicate the conditions that produce the popping noise.
- Listen closely to identify the specific location of the sound.

Step 3: Further Diagnosis

CV Joint Check:
- If the popping noise is more pronounced during sharp turns, this may indicate a failing CV joint. Use a stethoscope to listen while a helper turns the steering wheel.
Suspension Component Check:
- If the noise occurs over bumps or during turns, it may be related to suspension components. A pry bar can help check for play in bushings and ball joints.

Repair Instructions

Repairing or Replacing CV Joint

Removal:
- Remove the wheel and tire assembly.
- Detach the brake caliper and rotor (if necessary) for better access.
- Remove the axle nut using a socket wrench (usually around 30mm).
- Disconnect the lower control arm from the steering knuckle.
- Pull the axle out of the transaxle.
Replacement:
- Inspect the new CV joint for damage or defects.
- Install the new CV joint in reverse order of removal, ensuring to torque the axle nut to the manufacturer’s specifications (usually around 150 ft-lbs).
- Reattach the brake components and wheel.

Repairing Suspension Components

Ball Joint/Bushing Replacement:
- Remove the wheel and tire assembly.
- Detach the suspension components (control arms, etc.) as needed.
- Use a press or a suitable tool to remove the worn ball joint or bushing.
- Install the new part and reassemble, ensuring all bolts are torqued to specification.

Final Steps

Reassemble and Test:
- Reinstall the wheel and lower the vehicle.
- Perform a final road test to ensure the popping noise is resolved.
Alignment Check:
- After any suspension work, it’s advisable to get a wheel alignment to avoid uneven tire wear.

Conclusion

If the popping noise persists after these checks and repairs, further diagnosis may be required, potentially involving checking the steering rack or additional suspension components. Always consult a professional if you're unsure about any step in the process.