why does my Tesla Model S Plaid/Refresh (2021-present) make a strange noise when on the highway

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

537 words

Problem Statement

Learn how to diagnose and fix strange noises at highway speeds in Tesla Model S Plaid. 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 engage the parking brake and use jack stands when working under the vehicle.
•Allow the vehicle to cool before working on the brakes.

Symptoms

•Strange or unusual noise at highway speeds
•Increased wind noise or whistling sounds
•Vibration felt through the steering wheel or chassis
•Loss of stability or control at high speeds
•Potential warning lights illuminated on the dashboard

Diagnostic Steps

1
Inspect the vehicle for loose or damaged body panels and trim that may cause wind noise.
2
Check the tire pressure and inspect tires for uneven wear or damage.
3
Perform a visual inspection of the suspension components for wear or damage.
4
Use an OBD-II scanner to check for any error codes that may indicate electronic issues.
5
Test drive the vehicle at varying speeds to isolate the noise source.
6
Inspect the brakes and wheel bearings for any signs of wear or abnormal sounds.

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

•Screwdriver set
•Torque wrench
•Tire pressure gauge
•Air compressor
•Jack and jack stands
•Socket set
•OBD-II scanner

Parts Required

•Replacement tires (if necessary)
•Replacement suspension components (if damaged)
•Brake pads (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the vehicle for loose or damaged body panels and trim that may cause wind noise.
2
Check the tire pressure and inspect tires for uneven wear or damage.
3
Perform a visual inspection of the suspension components for wear or damage.
4
Use an OBD-II scanner to check for any error codes that may indicate electronic issues.
5
Test drive the vehicle at varying speeds to isolate the noise source.
6
Inspect the brakes and wheel bearings for any signs of wear or abnormal sounds.

Solution

1. Preparation

Gather tools and equipment.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Inspect and Tighten Body Panels

Sub-steps:
- Examine all door seals, trunk seals, and window seals for proper fit.
- Tighten any loose screws or fasteners on body panels and trim.
Tools Required: Screwdriver set, torque wrench.

3. Tire Inspection and Adjustment

Sub-steps:
- Check tire pressure with a tire pressure gauge and adjust to manufacturer specifications.
- Inspect tire tread for uneven wear; replace tires if necessary.
Tools Required: Tire pressure gauge, air compressor, jack and jack stands.

4. Suspension Component Inspection

Sub-steps:
- Visually inspect shock absorbers, struts, and control arms for any signs of damage or excessive wear.
- Replace any worn suspension components as needed.
Tools Required: Socket set, torque wrench.

5. Brake and Wheel Bearing Check

Sub-steps:
- Remove wheel covers or rims to access brakes and bearings.
- Inspect brake pads for wear and replace if necessary; check wheel bearings for play.
Tools Required: Jack, jack stands, socket set.

6. Reassemble and Test

Sub-steps:
- Reinstall any removed components and ensure all fasteners are tightened to manufacturer specifications.
- Conduct a test drive to confirm that the noise has been resolved.
Tools Required: Torque wrench.