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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

586 words

Problem Statement

Learn how to diagnose and fix strange 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 battery before working on electrical systems.
•Allow the vehicle to cool before inspecting components that may have been under load.

Symptoms

•Unusual high-pitched whine or grinding noise when accelerating
•Noise intensity increases with speed
•Possible vibrations felt through the cabin
•Intermittent noise that may occur only under certain acceleration conditions
•No visible warning lights on the dashboard

Diagnostic Steps

1
Inspect the vehicle for any visible signs of damage or loose components in the drivetrain.
2
Check the battery pack for any unusual signs such as swelling or overheating that may indicate an electrical issue.
3
Use an OBD-II scanner to check for any error codes related to the electric motor, battery, or drivetrain.
4
Test drive the vehicle to replicate the noise and determine if it occurs under specific conditions (e.g., full acceleration, partial throttle).
5
Inspect the wheel bearings and brake components for wear or damage, which can also create noise during acceleration.
6
Confirm the condition of the tires to ensure they are not contributing to the noise.

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
•Torque wrench
•Jack
•Jack stands

Parts Required

•Electric motor mounts (if damaged)
•Wheel bearings (if worn)
•Brake pads (if worn)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the vehicle for any visible signs of damage or loose components in the drivetrain.
2
Check the battery pack for any unusual signs such as swelling or overheating that may indicate an electrical issue.
3
Use an OBD-II scanner to check for any error codes related to the electric motor, battery, or drivetrain.
4
Test drive the vehicle to replicate the noise and determine if it occurs under specific conditions (e.g., full acceleration, partial throttle).
5
Inspect the wheel bearings and brake components for wear or damage, which can also create noise during acceleration.
6
Confirm the condition of the tires to ensure they are not contributing to the noise.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the battery to prevent any electrical shorts during repair.
Gather tools such as a socket set, torque wrench, jack, and jack stands.

2. Inspect Drivetrain Components

Sub-steps:
- Remove the underbody shield (if applicable) to access the drivetrain.
- Inspect the electric motor mounts for any signs of wear or damage.
- Check the driveshaft and CV joints for any signs of play or unusual wear.
Tools Required: Socket set, torque wrench.

3. Inspect Wheel Bearings and Brake Components

Sub-steps:
- Raise the vehicle using a jack and secure it with jack stands.
- Remove the wheels to access the brake components and wheel bearings.
- Check for any excessive play in the wheel bearings and inspect brake pads for wear.
Tools Required: Jack, jack stands, socket set.

4. Replace Damaged Components

Sub-steps:
- If any damaged components are found (e.g., bearings, mounts), replace them with OEM or high-quality aftermarket parts.
- Reassemble all components and ensure all fasteners are torqued to manufacturer specifications.
Tools Required: Torque wrench, socket set.

5. Reconnect Battery and Test

Reconnect the battery and clear any error codes using the OBD-II scanner.
Test drive the vehicle to confirm the noise has been eliminated and verify proper function.