my Tesla Model S Original (2012-2020) engine shakes when idling

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

538 words

Problem Statement

Learn how to diagnose and fix engine shaking at idle in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Use appropriate safety equipment when lifting the vehicle.

Symptoms

•Engine shaking or vibrations when the vehicle is at a stop
•Unusual noise emanating from the engine compartment
•Increased vibration felt in the cabin
•Potential loss of power during acceleration
•Possible dashboard warning lights (e.g., drivetrain fault)

Diagnostic Steps

1
Check the vehicle's software for any updates or known issues via the Tesla app or onboard diagnostics.
2
Inspect the motor mounts for wear or damage that could cause excessive engine movement.
3
Scan for error codes using the onboard diagnostics to identify any faults in the drive system.
4
Examine the battery pack for any signs of damage or loose connections that may affect performance.
5
Test the inverter and electric motor for proper operation and signs of failure.
6
Check the suspension components for wear that may contribute to vibrations.

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
•Hydraulic lift or jack stands

Parts Required

•New motor mounts (OEM recommended)
•Any damaged electrical components (if found)

Related Faults

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Diagnostic Steps

1
Check the vehicle's software for any updates or known issues via the Tesla app or onboard diagnostics.
2
Inspect the motor mounts for wear or damage that could cause excessive engine movement.
3
Scan for error codes using the onboard diagnostics to identify any faults in the drive system.
4
Examine the battery pack for any signs of damage or loose connections that may affect performance.
5
Test the inverter and electric motor for proper operation and signs of failure.
6
Check the suspension components for wear that may contribute to vibrations.

Solution

1. Preparation

Gather all required tools and parts.
Ensure the vehicle is parked on a level surface and set to "Park."
Disconnect the 12V battery to prevent any electrical issues during repair.

2. Inspect and Replace Motor Mounts

Sub-steps:
1. Raise the vehicle using a hydraulic lift or jack stands.
2. Locate the motor mounts: typically found connecting the electric motor to the chassis.
3. Visually inspect the motor mounts for any cracks, tears, or signs of deterioration.
4. Use a socket set to remove the bolts securing the motor mounts.
5. Replace the damaged mounts with new OEM parts, ensuring proper alignment.
6. Torque the bolts to the manufacturer’s specifications (usually around 30-40 ft-lbs).
7. Reconnect the 12V battery.

3. Inspect Inverter and Electric Motor

Sub-steps:
1. Remove any protective covers from the inverter and electric motor.
2. Use a multimeter to check the inverter for proper voltage output.
3. Inspect the wiring harness for frayed wires or loose connections.
4. If any issues are found, repair or replace the components as necessary.
5. Reinstall any covers and secure them properly.

4. Final Assembly and Testing

Sub-steps:
1. Lower the vehicle back to the ground.
2. Start the vehicle and let it idle to observe for any remaining vibrations.
3. Test drive the vehicle to ensure smooth acceleration and operation.