how to fix the shifting issues in my Ford F-150 13th Generation (2015-2020)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and ensure the engine is off.
• Disconnect the battery to avoid electrical shorts.

2. Transmission Fluid Change

• Tools Required: Socket set, transmission fluid pump, drain pan, funnel.
• Sub-steps:
  1. Position a drain pan under the transmission pan.
  2. Remove the transmission pan bolts with a socket and carefully lower the pan to drain the fluid.
  3. Clean the pan and replace the filter if applicable.
  4. Replace the pan gasket to ensure a proper seal.
  5. Reinstall the pan and torque bolts to the manufacturer’s specifications (usually around 10-12 lb-ft).
  6. Refill the transmission with the appropriate type and amount of fluid (consult owner's manual for specifications).

3. Solenoid Replacement (if necessary)

• Tools Required: Socket set, torque wrench, transmission fluid.
• Sub-steps:
  1. Locate the transmission solenoids based on the service manual.
  2. Disconnect the electrical connectors from the solenoids.
  3. Remove the retaining bolts and take out the faulty solenoids.
  4. Install new solenoids in reverse order and torque to specifications.
  5. Reconnect the electrical connectors.

4. TCM Reprogramming (if necessary)

• Tools Required: OBD-II scanner with programming capability.
• Sub-steps:
  1. Connect the OBD-II scanner to the vehicle's diagnostic port.
  2. Follow the scanner prompts to access the TCM and check for updates or reprogramming options.
  3. If an update is available, follow the on-screen instructions to complete the reprogramming process.