why does my Ford F-150 14th Generation (2021-2024) transmission jerk when shifting

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, transmission fluid gauge, fluid replacement kit.
• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Disconnect the battery to prevent electrical shorts.

2. Transmission Fluid Check and Replacement

1. Locate the transmission dipstick or fill plug.
2. Remove the dipstick and check fluid level; add fluid if low. If fluid is discolored or burnt, proceed to the next step.
3. Drain the old transmission fluid using a drain pan; ensure the vehicle is securely lifted with jack stands if needed.
4. Replace the transmission filter if applicable (refer to the service manual for specific instructions).
5. Refill the transmission with the recommended fluid type (check owner's manual for specifications).
6. Start the engine and cycle through the gears while checking fluid levels again, adding as necessary.

3. TCM Inspection and Update

1. Inspect the transmission control module for loose connections and corrosion.
2. If DTCs indicate a software issue, connect the OBD-II scanner to check for available updates.
3. Follow the manufacturer’s instructions to update the TCM software if necessary.

4. Mounts Inspection and Replacement

1. Inspect engine and transmission mounts for cracks, tears, or excessive movement.
2. If damaged, remove the old mounts using appropriate tools and install new mounts.
3. Torque the new mounts to the specifications provided in the service manual.