why is my Tesla Model S Original (2012-2020) making a whirring sound when accelerating?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

525 words

Problem Statement

Diagnose and fix whirring sound during acceleration in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect high-voltage battery before working on electrical components.
•Always allow the vehicle to cool before performing maintenance tasks.

Symptoms

•Whirring noise increases with acceleration
•Possible vibrations felt through the cabin
•Decreased acceleration performance
•No warning lights illuminated on the dashboard
•Noise persists when coasting at speed

Diagnostic Steps

1
Inspect the electric motor and drive unit for any visible damage or loose components.
2
Use a diagnostic tool to check for any error codes associated with the drive system.
3
Listen closely to identify the location of the noise—front, rear, or side of the vehicle.
4
Check the condition of the bearings in the electric motor and drive unit.
5
Inspect the transmission fluid level and condition, if applicable.
6
Examine wheel bearings and tires for wear or damage.

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
•Multimeter
•Bearing puller or slide hammer
•Grease
•Fluid pump
•Transmission fluid dipstick

Parts Required

•Replacement bearings (if found worn)
•Transmission fluid (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the electric motor and drive unit for any visible damage or loose components.
2
Use a diagnostic tool to check for any error codes associated with the drive system.
3
Listen closely to identify the location of the noise—front, rear, or side of the vehicle.
4
Check the condition of the bearings in the electric motor and drive unit.
5
Inspect the transmission fluid level and condition, if applicable.
6
Examine wheel bearings and tires for wear or damage.

Solution

1. Preparation

Ensure the vehicle is parked on a flat, stable surface.
Disconnect the high-voltage battery before working on electrical components.
Gather required tools and parts.

2. Inspect Electric Motor

Tools Required: Socket set, torque wrench, multimeter
Sub-steps:
1. Remove the motor cover by unscrewing bolts and carefully lifting it off.
2. Visually inspect the motor for signs of wear, damage, and loose connections.
3. Check the alignment and secure all electrical connections.

3. Check Bearings

Tools Required: Bearing puller or slide hammer, grease
Sub-steps:
1. Remove the drive unit from the vehicle if necessary to access the bearings.
2. Inspect bearings for wear; replace if they are rough or excessively worn.
3. Apply appropriate grease to new bearings before installation.

4. Transmission Fluid Check

Tools Required: Fluid pump, transmission fluid dipstick
Sub-steps:
1. Locate the transmission fluid fill port and check fluid level using a dipstick.
2. If low, add manufacturer-recommended transmission fluid until the correct level is reached.
3. Replace any seals if there are signs of leaks.

5. Reassemble and Test

Tools Required: Torque wrench
Sub-steps:
1. Reattach the motor cover and tighten all bolts to the specified torque values.
2. Reconnect the high-voltage battery and ensure all safety measures are in place.
3. Start the vehicle and take a test drive to monitor for any noises.