why does my Tesla Model S Plaid/Refresh (2021-present) make 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

518 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

Drivetrain

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Ensure the vehicle is securely lifted before working underneath.

Symptoms

•Whirring noise becomes more pronounced during acceleration
•Noise persists while driving at various speeds
•No abnormal vibrations felt in the cabin
•Possible reduction in power or responsiveness during acceleration
•No warning lights or alerts on the dashboard

Diagnostic Steps

1
Perform a visual inspection of the drivetrain and motor components for any obvious signs of damage or wear.
2
Use the Tesla service app to check for any related error codes or alerts from the vehicle's diagnostic system.
3
Inspect the motor mounts and suspension components for any loose parts that may contribute to noise.
4
Test drive the vehicle under controlled conditions to isolate the source of the noise (e.g., varying acceleration levels).
5
Check the battery and inverter cooling systems for proper operation, as improper cooling can cause unusual noises.
6
Assess the tires for uneven wear or damage, which may also produce noise during acceleration.

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
•Hydraulic lift or jack stands
•Coolant flush kit

Parts Required

•Motor mounts (if damaged)
•Tesla-approved coolant (if required)

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Diagnostic Steps

1
Perform a visual inspection of the drivetrain and motor components for any obvious signs of damage or wear.
2
Use the Tesla service app to check for any related error codes or alerts from the vehicle's diagnostic system.
3
Inspect the motor mounts and suspension components for any loose parts that may contribute to noise.
4
Test drive the vehicle under controlled conditions to isolate the source of the noise (e.g., varying acceleration levels).
5
Check the battery and inverter cooling systems for proper operation, as improper cooling can cause unusual noises.
6
Assess the tires for uneven wear or damage, which may also produce noise during acceleration.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and set to "Park."
Disconnect the 12V battery to ensure safety while working on electrical components.

2. Inspect and Secure Drivetrain Components

Sub-steps:
1. Raise the vehicle using a hydraulic lift or jack stands.
2. Inspect the electric motor and gearbox for any loose bolts or misalignment.
3. Tighten any loose components to the manufacturer’s torque specifications.

3. Check Motor Mounts

Sub-steps:
1. Locate the motor mounts and inspect for signs of wear or damage.
2. Replace any damaged mounts with OEM parts.
3. Torque the new motor mounts to specifications.

4. Assess Cooling Systems

Sub-steps:
1. Inspect the battery and inverter cooling lines for leaks or blockages.
2. Flush and refill the coolant if necessary, using Tesla-approved coolant.
3. Ensure the cooling fans are operational and free from debris.

5. Tire Inspection

Sub-steps:
1. Check tire pressure and adjust to manufacturer specifications.
2. Inspect tires for uneven wear patterns or damage; replace if necessary.
3. Rotate tires if uneven wear is identified.