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Home >> Ford >> 2021 >> Explorer Limited Hybrid, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10-Speed Automatic Transmission - 10R80 MHT (2 Of 2) >> General Procedures >> Transmission Fluid Drain and Refill

Transmission Fluid Drain and Refill

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Special Tool(s) / General Equipment 

GFD514084Courtesy of FORD MOTOR COMPANY
307-570 Tube, Transmission Fill TKIT-2006U-F/FM TKIT-2006U-FLM/LM TKIT-2006U-ROW1 TKIT-2006U-ROW2
Fluid Suction Gun
Universal Fluid Dispenser

Materials 

Name Specification
Motorcraft® MERCON® ULV Automatic Transmission Fluid XT-12-QULV WSS-M2C949-A, MERCON® ULV

Draining 

  1. NOTE: It is not necessary to remove the transmission fluid filter to drain the transmission fluid.

    Remove the transmission fluid pan to drain the transmission fluid. Refer to: Transmission Fluid Pan, Gasket and Filter .

Filling 

NOTE: 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, internal failure could result.
NOTE: Using any transmission fluid other than what is specified can result in the transmission not operating normally or premature transmission failure.
NOTE: Check the transmission fluid level if the transmission starts to slip, shifts slowly or shows signs of transmission fluid leaking.
  1. Remove the transmission fluid fill plug.
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  2. Remove the transmission fluid level indicator from the transmission.
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  3. NOTE: Add 4.8L (5 qt) of transmission fluid to the transmission as an initial fill if:

    • a new main control has been installed.
    • the transmission fluid pan or transmission fluid filter have been removed.

    NOTE: Add 5.7L (6 qt) of transmission fluid to the transmission as an initial fill if the transmission has been overhauled.
    NOTE: The use of a pressurized fluid dispenser with 8-12 qt capacity, such as the Mityvac MITMV6412, is recommended for this procedure.

    Using the special tool and the fluid dispenser, add the transmission fluid through the transmission fluid fill hole.

    • Use Special Service Tool: 307-570 Tube, Transmission Fill.

    • Use the General Equipment: Universal Fluid Dispenser

      Material: Motorcraft® MERCON® ULV Automatic Transmission Fluid / XT-12-QULV (WSS-M2C949-A,) (MERCON® ULV)

    GFD514684Courtesy of FORD MOTOR COMPANY
    1. Connect the diagnostic scan tool and monitor the transmission fluid temperature.
    2. Start the engine.
    3. Place the selector lever in each gear position, holding approximately 5 seconds in each position. Place the selector lever in PARK and allow the engine to idle at 600-750 rpm.

    • GFD514899Courtesy of FORD MOTOR COMPANY

      Check the transmission fluid level using the transmission fluid level indicator.

    GFD514683Courtesy of FORD MOTOR COMPANY
  4. NOTE: The vehicle can be driven when the transmission is cold provided the transmission fluid level is between the first hatch mark and 6 on the transmission fluid level indicator. Failure to add transmission fluid to this level can result in damage to the transmission.

    Add transmission fluid until it reaches between the first hatch mark and 6 on the transmission fluid indicator.

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  5. GFD514899Courtesy of FORD MOTOR COMPANY

    Install the transmission fluid fill plug.

    Torque: 52 lb.ft (70 Nm)

    GFD514682Courtesy of FORD MOTOR COMPANY
  6. Test drive the vehicle. While driving the vehicle, use the scan tool to verify the transmission fluid has reached an operating temperature of 96 °C - 101 °C (206 °F - 215 °F). This circulates the transmission fluid through the torque converter and the transmission fluid cooling system, eliminating any trapped air in the transmission fluid cooling system. Place the vehicle in PARK and allow the engine to idle at 600-750 rpm. Verify the transmission fluid temperature is between 96 °C - 101 °C (206 °F - 215 °F) and lift the vehicle on a hoist. Refer to: Jacking and Lifting - Overview .
  7. NOTE: The engine must be running continuously while the transmission fluid check is in progress.

    Follow the steps below to enter the engine running diagnostic mode:

    1. Place the vehicle in PARK.
    2. Push the start button to enter the accessory mode.
    3. Press the brake pedal and accelerator pedal together for 5 seconds.
    4. Steps 5 and 6 should be performed within 15 seconds after completing Step 3.
    5. Release both the accelerator and brake pedals.
    6. Press the brake pedal and push the start button so that the vehicle is in drivable state.
    7. Press the brake pedal and accelerator pedal together for 5 seconds.
    8. NOTE: The READY TO DRIVE or DRIVE symbol should be flashing on the instrument cluster at a regular interval when the Engine Running diagnostic mode is active.

      When this sequence is complete, the vehicle enters the diagnostic mode and the engine should remain running continuously.

  8. GFD514899Courtesy of FORD MOTOR COMPANY

    Remove the transmission fluid fill plug.

    GFD514682Courtesy of FORD MOTOR COMPANY
  9. GFD514899Courtesy of FORD MOTOR COMPANY

    Check the transmission fluid level using the transmission fluid level indicator.

    GFD514683Courtesy of FORD MOTOR COMPANY
  10. NOTE: The transmission fluid level indicator uses 1 through 6 to indicate the fluid level. The different numbers are for different vehicle models. Use the area between 1 and 2 when checking the transmission fluid level. The correct transmission fluid level is between 1 and 2 on the transmission fluid level indicator.
    NOTE: Do not overfill the transmission.

    Using the scan tool verify the transmission fluid temperature is between 96 °C - 101 °C (206 °F - 215 °F). The transmission fluid level must be between 1 and 2 on the transmission fluid level indicator.

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  11. GFD514899Courtesy of FORD MOTOR COMPANY
    NOTE: The use of a pressurized fluid dispenser with 8-12 qt capacity, such as the Mityvac MITMV6412, is recommended for this procedure.

    If the transmission fluid level is low, add transmission fluid using the special tool and the fluid dispenser.

    • Use Special Service Tool: 307-570 Tube, Transmission Fill.

    • Use the General Equipment: Universal Fluid Dispenser

      Material: Motorcraft® MERCON® ULV Automatic Transmission Fluid / XT-12-QULV (WSS-M2C949-A,) (MERCON® ULV)

    GFD514684Courtesy of FORD MOTOR COMPANY
  12. GFD514899Courtesy of FORD MOTOR COMPANY

    If the transmission fluid is overfilled, remove the excess transmission fluid with a fluid suction gun. Use the General Equipment: Fluid Suction Gun

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  13. Install the transmission fluid level indicator.
    GFD514683Courtesy of FORD MOTOR COMPANY
  14. Install the transmission fluid fill plug.

    Torque: 52 lb.ft (70 Nm)

GFD514682Courtesy of FORD MOTOR COMPANY