why is my Tesla Model S Plaid/Refresh (2021-present) making a whirring noise when accelerating?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

516 words

Problem Statement

Learn how to diagnose and fix whirring noise during acceleration in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle from power before working on electrical components.
•Allow the vehicle to cool down before performing inspections or repairs.

Symptoms

•Whirring noise becomes more pronounced during acceleration
•Possible vibration felt through the vehicle
•Reduced acceleration performance
•Increased cabin noise level
•Potentially erratic power delivery

Diagnostic Steps

1
Listen for Specifics: Determine if the noise is more pronounced from a particular wheel or from the motor area.
2
Check for Error Codes: Use a Tesla diagnostic tool to check for any stored error codes that might indicate motor or drivetrain issues.
3
Visual Inspection: Examine the undercarriage and motor assembly for any loose or damaged components.
4
Test Drive: Perform a controlled test drive to replicate the noise under various acceleration conditions.
5
Inspect Wheel Bearings: Check for worn or damaged wheel bearings that could cause noise under load.
6
Examine Drive Unit: Investigate the electric drive unit for any signs of wear or abnormal movement.

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

•Torque wrench
•Socket set
•Jack stands
•Diagnostic tool

Parts Required

•Replacement wheel bearings (if needed)
•Any seals or gaskets that may require replacement during disassembly

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Diagnostic Steps

1
Listen for Specifics: Determine if the noise is more pronounced from a particular wheel or from the motor area.
2
Check for Error Codes: Use a Tesla diagnostic tool to check for any stored error codes that might indicate motor or drivetrain issues.
3
Visual Inspection: Examine the undercarriage and motor assembly for any loose or damaged components.
4
Test Drive: Perform a controlled test drive to replicate the noise under various acceleration conditions.
5
Inspect Wheel Bearings: Check for worn or damaged wheel bearings that could cause noise under load.
6
Examine Drive Unit: Investigate the electric drive unit for any signs of wear or abnormal movement.

Solution

1. Preparation

Gather Tools:
- Torque wrench
- Socket set
- Jack stands
- Diagnostic tool
Safety Warning: Disconnect the vehicle from power by turning off the main battery via the touchscreen before commencing work.

2. Raise the Vehicle

Use a jack to lift the car and secure it with jack stands.
Ensure the vehicle is on a level surface for stability.

3. Inspect the Drive Unit

Remove any protective covers or shields around the drive unit.
Check for any visible signs of wear, damage, or unusual movement in the drive components.

4. Check and Replace Bearings

If bearing wear is suspected, remove the affected wheel.
Using a socket set, unbolt the brake assembly and rotor to access the hub.
Inspect the wheel bearing for play or noise; replace if necessary.
- Bearing Replacement:
  - Remove the old bearing using a bearing puller.
  - Install the new bearing, ensuring it is seated properly.
  - Reassemble the rotor and brake assembly, torquing bolts to manufacturer specifications.

5. Reassemble and Lower Vehicle

Replace any covers removed during inspection.
Lower the vehicle back to the ground and perform a final visual check.