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Home >> Ford >> 2021 >> Explorer Limited Hybrid, RWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Cooling Systems >> Electric Powertrain Cooling - 3.3L DURATEC-V6 - Hybrid (BP) >> General Procedures >> Cooling System Filling and Bleeding >> Bleeding

Cooling System Filling and Bleeding: Bleeding

  1. Place transmission selector in park.
  2. NOTE: Vehicles should be left in the service fill mode for a minimum of 20 minutes.

    Using the scan tool, run the service fill mode procedure for the electric powertrain cooling system.

  3. NOTE: The gas engine may or may not start. Confirm that the SOBDMC/ TCM coolant pump is running by feeling for vibration at the pump.

    Start the vehicle by pressing the brake pedal and START button until the ready to drive indicator is illuminated.

  4. NOTE: Monitor the level in the reservoir and fill throughout the process.

    Watch for air bubbles in the coolant expansion tank for the SOBDMC/ TCM. Add coolant to the coolant expansion tank if the level falls below the MIN mark. Bleeding is complete when bubbling stops. Refer to: Specifications .

  5. Exit the service fill mode and turn off the ignition. Check and fill the coolant expansion tank until the coolant level is between the MIN and MAX marks. Refer to: Specifications .
  6. Repeat steps 2 through 5 if necessary.
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