why does my Ford F-150 Fourteenth Generation (2021-present) transmission jerk when shifting gears

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to prevent electrical shorts during work.
• Ensure the vehicle is parked on a level surface and securely lift it using jack stands.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fluid dipstick and wipe it clean.
  2. Insert the dipstick back and remove it again to check the fluid level; add fluid if low.
  3. If fluid is dark or has a burnt smell, drain the old fluid.
  4. Place a drain pan under the transmission and remove the drain plug.
  5. Allow old fluid to fully drain, then replace the drain plug and torque to manufacturer's specifications (typically 8-12 ft-lbs).
  6. Refill the transmission with new fluid through the dipstick tube, using the recommended fluid type (Ford Mercon LV ATF).

3. Inspect and Clean Transmission Filter

• Sub-steps:
  1. Remove the transmission pan by loosening the bolts with a socket set.
  2. Carefully lower the pan to avoid spilling fluid.
  3. Remove the old transmission filter; install the new filter ensuring it’s seated correctly.
  4. Clean the transmission pan and magnet to remove debris.
  5. Reinstall the transmission pan, applying a new gasket if necessary, and torque bolts to manufacturer specifications (typically 12-15 ft-lbs).

4. Test and Adjust Transmission Control Module (TCM)

• Sub-steps:
  1. Reconnect the battery and use a diagnostic tool to access TCM settings.
  2. If necessary, perform a TCM reset or reprogramming according to the service manual.
  3. Clear any stored error codes and conduct a road test.