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Transmission Fluid Drain and Refill: Refill

NOTE: This procedure contains the air purge steps required to purge air from the transmission fluid cooling system. This procedure is NOT intended for use with the Transmission Fluid Level Check.
NOTE: The vehicle should not be driven if the transmission fluid level is low as internal failure could result.
NOTE: The transmission fluid fill plug is located near the exhaust system. The exhaust will be extremely hot during this procedure.
NOTE: The use of any other transmission fluid than specified can result in the transmission failing to operate in a normal manner or transmission failure.
NOTE: If the transmission starts to slip, shifts slowly or shows signs of transmission fluid leaking, the transmission fluid level should be checked.
NOTE: Here is an overview of the Transmission Fluid Drain and Refill procedure.
    NOTE: The transmission will need 3.3L (3.5 qt) of transmission fluid added to the transmission as an initial fill if:
    • the transmission has been overhauled.
    • a new mechatronic assembly has been installed.
    • the transmission fluid pan or transmission fluid filter have been removed.
  1. Using the Transmission Fluid Fill Tube, add 3.3L (3.5 qt) of transmission fluid to the transmission through the transmission fluid fill hole. For additional information, refer to ADDING ADDITIONAL TRANSMISSION FLUID  in this procedure.
  2. Check the transmission fluid level cold.
    • The vehicle is safe to drive if the transmission fluid is in the cold level range 32°C-43°C (90°F-110°F).
    • Using the scan tool and with the engine running, place the selector lever in each gear position and hold approximately 5 seconds. Place the selector lever in PARK, with the engine at idle (600-750 RPM).
  3. Separate the transmission fluid level indicator from the transmission fluid fill plug.
    Fig 1: Locating Transmission Fluid Level Indicator And Transmission Fluid Fill Plug
    G06127148Courtesy of FORD MOTOR CO.
  4. Wipe the transmission fluid level indicator clean. Reinstall the transmission fluid level indicator only back into the transmission fluid fill plug hole to check the transmission fluid level. Repeat this until a consistent reading is established.
    Fig 2: Locating Transmission Fluid Level Indicator
    G06127149Courtesy of FORD MOTOR CO.
  5. Add transmission fluid to the cold level location as shown in the Fig 3.
    Fig 3: Locating Transmission Fluid To Cold Level Location
    G06127150Courtesy of FORD MOTOR CO.
  6. Install the transmission fluid fill plug.
    • Tighten to 35 Nm (26 lb-ft).
      Fig 4: Locating Transmission Fluid Fill Plug
      G06127144Courtesy of FORD MOTOR CO.
  7. While driving the vehicle, use the scan tool to verify that the TFT  has reached a temperature of 88°C (190°F). This will circulate the transmission fluid through the torque converter and the transmission fluid cooling system, eliminating any trapped air in the transmission fluid cooling system.
    • With the engine idling (600-750 RPM) in PARK, verify that the TFT  is between 80°C-85°C (176°F-185°F).
  8. Remove the transmission fluid fill plug transmission fluid level indicator assembly located on the passenger side front portion of the transmission case.
    Fig 5: Locating Transmission Fluid Fill Plug Transmission Fluid Level Indicator Assembly
    G06127144Courtesy of FORD MOTOR CO.
  9. Separate the transmission fluid level indicator from the transmission fluid fill plug.
    Fig 6: Locating Transmission Fluid Level Indicator
    G06127148Courtesy of FORD MOTOR CO.
  10. Wipe the transmission fluid level indicator clean. Reinstall the transmission fluid level indicator only back into the transmission fluid fill plug hole to check the transmission fluid level. Repeat this until a consistent reading is established.
    Fig 7: Locating Transmission Fluid Level Indicator
    G06127154Courtesy of FORD MOTOR CO.
  11. Using the scan tool verify that the TFT  is between 80°C-85°C (176°F-185°F). The transmission fluid level must be at the upper level of the crosshatch mark.
    Fig 8: Locating Transmission Fluid Level At Crosshatch Mark
    G06127125Courtesy of FORD MOTOR CO.
  12. NOTE: If the transmission fluid is not at the correct level, follow the steps for Adding Additional Transmission Fluid or Removing Transmission Fluid in this procedure.
  13. Install the transmission fluid fill plug.
    • Tighten to 35 Nm (26 lb-ft).
      Fig 9: Locating Transmission Fluid Fill Plug
      G06127156Courtesy of FORD MOTOR CO.