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my Tesla Model S Original (2012-2020) is jerking when accelerating what could it be - Tesla Model S
Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/my Tesla Model S Original (2012-2020) is jerking when accelerating what could it be

my Tesla Model S Original (2012-2020) is jerking when accelerating what could it be

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
471 words

Problem Statement

Learn how to diagnose and fix jerking during acceleration in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Electrical
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the 12V battery before working on electrical systems.
  • •Allow the vehicle to cool down before inspecting the drive unit.

Symptoms

  • •Jerking or stuttering during acceleration
  • •Loss of power intermittently
  • •Reduced efficiency or range
  • •Unusual noises from the powertrain
  • •Warning messages on the dashboard

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Electrical contact cleaner
  • •Battery analyzer
  • •Multimeter
  • •Socket set
  • •Torque wrench

Parts Required

  • •High-voltage connectors (if damaged)
  • •Battery pack (if degraded)

Additional Information

Affected Component
Electrical
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
6 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a flat surface and turned off.
  • Disconnect the 12V battery for safety.
2. Inspect and Clean Connections
  • Tools Required: Electrical contact cleaner, wrench set.
  • Remove the covers to access the battery and motor connections.
  • Inspect all high-voltage and low-voltage connections for signs of damage or corrosion.
  • Clean any corroded connections with electrical contact cleaner and reconnect securely.
3. Battery Health Check
  • Tools Required: Battery analyzer (specific for Tesla), multimeter.
  • Connect the battery analyzer to assess the state of charge and health.
  • If the battery shows significant degradation, consider replacing the battery pack.
4. Throttle Pedal and Motor Controller
  • Tools Required: OBD-II scanner, torque wrench.
  • Use the OBD-II scanner to verify throttle position sensor readings.
  • If discrepancies are found, recalibrate the throttle pedal through the vehicle’s service menu.
  • Inspect the motor controller for any firmware updates and apply if necessary.
5. Drive Unit Inspection
  • Tools Required: Socket set, torque wrench.
  • Raise the vehicle safely using jack stands.
  • Inspect the drive unit for any visible damage or loose components.
  • Tighten any loose bolts to manufacturer specifications.