how to flush the transmission fluid in my Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather tools: socket set, wrench set, transmission fluid pump, and a drain pan.
• Ensure the vehicle is on a flat surface and the engine is off.
• Wear safety glasses and gloves.

2. Raise the Vehicle

• Use a hydraulic jack to lift the front of the vehicle and secure it on jack stands.
• Ensure all safety precautions are followed to prevent vehicle movement.

3. Drain the Old Fluid

• Place a drain pan under the transmission pan.
• Remove the transmission pan bolts using a socket wrench.
• Carefully lower the transmission pan to allow old fluid to drain completely.
• Dispose of the old fluid according to local regulations.

4. Replace the Filter

• Remove the old transmission filter (if applicable) by unscrewing it or unclip it based on the design.
• Clean the filter mount area to prevent debris from entering the transmission.
• Install the new transmission filter securely.

5. Reinstall the Transmission Pan

• Clean the transmission pan and ensure the gasket surface is free of debris.
• Apply a thin layer of transmission RTV sealant if required.
• Reattach the transmission pan and torque the bolts to the manufacturer’s specifications (usually around 10-12 ft-lbs).

6. Flush the Transmission

• Use a transmission fluid pump to introduce new fluid into the transmission through the dipstick tube or a dedicated fill port.
• Continuously check the fluid level and add fluid until it reaches the proper level on the dipstick.
• Start the engine and allow it to idle while cycling through the gears to circulate the new fluid.

7. Check Fluid Level

• With the engine running, check the transmission fluid level again and add more fluid if necessary to reach the full mark.