why does my Tesla Model S Original (2012-2020) make a loud whirring sound when accelerating

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

4-8 hours

Time

medium

Difficulty

medium

Severity

3 min read

526 words

Problem Statement

Diagnose and fix the loud whirring noise during acceleration in Tesla Model S (2012-2020). Step-by-step guide with diagnostic and repair instructions.

Affected Component

Electrical

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool down before handling any components to avoid burns.

Symptoms

•Loud whirring noise when accelerating
•Possible vibrations felt in the cabin
•Reduced performance or acceleration response
•Sounds may change with speed or load
•No warning lights illuminated on the dashboard

Diagnostic Steps

1
Inspect the electric motor for any visible signs of damage or wear.
2
Check the drive unit for unusual noises while stationary and in gear.
3
Use an OBD-II scanner to check for any error codes related to the electric motor or drive unit.
4
Inspect the transmission fluid level and condition if applicable.
5
Test drive the vehicle to replicate the noise and identify under which conditions it occurs.
6
Examine the wheel bearings and other drivetrain components 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

•OBD-II scanner
•Socket set
•Multimeter
•Torque wrench

Parts Required

•Electric motor (if faulty)
•Motor mounts (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the electric motor for any visible signs of damage or wear.
2
Check the drive unit for unusual noises while stationary and in gear.
3
Use an OBD-II scanner to check for any error codes related to the electric motor or drive unit.
4
Inspect the transmission fluid level and condition if applicable.
5
Test drive the vehicle to replicate the noise and identify under which conditions it occurs.
6
Examine the wheel bearings and other drivetrain components for wear or damage.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a flat surface and in "Park".
Disconnect the vehicle from any charging source and turn off all electronics.

2. Inspect and Diagnose the Electric Motor

Tools Required: Socket set, multimeter, torque wrench
Remove the rear underbody panel to access the electric motor.
Check the motor mounts for wear and ensure they are secure.
Use a multimeter to test the motor connections for proper voltage and continuity.
If the motor is suspected to be faulty based on the inspection, proceed to remove it.

3. Remove Electric Motor (if necessary)

Disconnect all electrical connections to the motor.
Use a socket set to remove the bolts securing the motor to the chassis.
Carefully lower the motor from its mounting position, ensuring to support it properly to avoid damage.

4. Inspect and Replace Components

Inspect the motor bearings and internal components for wear.
If any components are damaged, replace them with OEM parts.
Reassemble the motor and reattach it to the chassis, ensuring all bolts are torqued to the manufacturer's specifications.

5. Reassemble and Test

Reconnect all electrical connections.
Replace the underbody panel, securing it with the appropriate fasteners.
Perform a final inspection to ensure everything is in place and secured.