my Ford F-150 Fourteenth Generation (2021-present) transfer case stuck in neutral how to fix

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, torque wrench, fluid pump.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to avoid any electrical shorts while working on the transfer case.

2. Check and Replace Transfer Case Fluid

• Sub-steps:
  1. Remove the transfer case fill plug using a socket wrench.
  2. Insert a fluid pump and check the fluid level; if low, add the recommended transfer case fluid.
  3. If fluid is dirty or contaminated, drain the fluid by removing the drain plug and allow it to fully drain.
  4. Replace the drain plug and fill with new fluid until it starts to seep from the fill hole.
  5. Replace the fill plug and torque to the manufacturer’s specifications.

3. Inspect and Test the Transfer Case Shift Motor

• Sub-steps:
  1. Locate the transfer case shift motor and disconnect the electrical connector.
  2. Use a multimeter to test for voltage at the connector while cycling the gear shifter.
  3. If no voltage is present, trace the wiring back to the control module for any breaks or shorts.
  4. If voltage is present but the motor does not operate, replace the transfer case shift motor.
  5. Reconnect the electrical connector and ensure it is secure.

4. Check Gear Selector Linkage

• Sub-steps:
  1. Inspect the gear selector linkage for any signs of wear or damage.
  2. If misaligned, adjust the linkage as necessary according to the service manual.
  3. Tighten any loose bolts and ensure all connections are secure.

5. Reassemble and Reconnect Battery

• Sub-steps:
  1. Reconnect the negative terminal of the battery.
  2. Start the vehicle and check for any warning lights on the dashboard.
  3. Attempt to shift the transfer case through its range of settings.