how to resolve the torque converter shudder in my Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Tools Required: OBD-II scanner, torque wrench, fluid transfer pump.
• Ensure the vehicle is parked on a level surface with the parking brake engaged.
• Disconnect the battery to prevent any electrical issues during repair.

2. Change Transmission Fluid and Filter

• Sub-steps:
  1. Remove the transmission pan by loosening the bolts with a socket set.
  2. Drain old transmission fluid into a suitable container.
  3. Replace the transmission filter according to the manufacturer’s specifications.
  4. Clean the transmission pan and magnet to remove debris.
  5. Reinstall the transmission pan with a new gasket, tightening bolts to the specified torque (typically 8-12 ft-lbs).

3. Check and Replace Torque Converter

• Sub-steps:
  1. Remove the transmission from the engine by disconnecting the bell housing bolts and support the transmission.
  2. Unbolt the torque converter from the flex plate and carefully remove it from the transmission.
  3. Inspect the old torque converter for signs of wear or damage; replace if necessary.
  4. Install the new torque converter by aligning it properly and bolting it to the flex plate.
  5. Reattach the transmission to the engine and ensure all electrical connections are secure.

4. Refill Transmission Fluid

• Sub-steps:
  1. Use a fluid transfer pump to fill the transmission with the correct type of fluid (usually Mercon LV for Ford).
  2. Check the fluid level using the dipstick while the engine is running and the transmission is in park.
  3. Add fluid as necessary to reach the correct level.