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Home >> Ford >> 2022 >> Escape SEL Plug-In Hybrid >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling - 2.5L DURATEC - Hybrid (121KW/164PS) (BG) >> General Procedures >> Engine Cooling System Draining, Vacuum Filling and Bleeding

Engine Cooling System Draining, Vacuum Filling and Bleeding

For information on Ford Color Coded Illustrations refer to OEM COLOR CODING .

Special Tool(s) / General Equipment 

GFD650519Courtesy of FORD MOTOR COMPANY
 ROB75240 Coolant/Battery Refractometer (Fahrenheit)
Fluid Container
Cooling System Vacuum Tester and Refiller

Draining 

NOTE: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated, it must be recycled or disposed of correctly. Using contaminated coolant may result in damage to the engine or cooling system components.
NOTE: Use the correct coolant. Do not mix coolant types. Mixing coolant types may degrade the coolant corrosion protection and may damage the engine or cooling system. For the correct coolant specified for this vehicle, refer to SPECIFICATIONS  .
NOTE: Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. Refer to Engine Cooling System Flushing  . Failure to follow these instructions may damage the engine or cooling system.
NOTE: During normal vehicle operation, coolant can change color. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.
NOTE: Less than 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement.
  1. GFD650519Courtesy of FORD MOTOR COMPANY
    GFD374523Courtesy of FORD MOTOR COMPANY
    WARNING: When releasing the cooling system pressure, cover the coolant expansion tank cap with a thick cloth.

    Remove the pressure relief cap.

    GFD650520Courtesy of FORD MOTOR COMPANY
  2. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
  3. Remove the retainers and the underbody shield.
    GFD650521Courtesy of FORD MOTOR COMPANY
  4. GFD650519Courtesy of FORD MOTOR COMPANY
    WARNING: Be prepared to collect escaping fluid.

    • Use a hose to drain the coolant.

    • Open the radiator drain valve and drain the engine coolant in a suitable, clean container. Use the General Equipment: Fluid Container

GFD650522Courtesy of FORD MOTOR COMPANY

Filling 

Filling and Bleeding with a Vacuum Cooling System Filler 

    • NOTE: Use the correct coolant. Do not mix coolant types. Mixing coolant types may degrade the coolant corrosion protection and may damage the engine or cooling system. For the correct coolant specified for this vehicle, refer to SPECIFICATIONS  .
      NOTE: Engine coolant provides boil protection, corrosion protection, freeze protection and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle.
      NOTE: Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
      NOTE: Ford Motor Company does NOT recommend the use of recycled engine coolant since a Ford- approved recycling process is not yet available.

      When adding or topping off the engine coolant:

    • Measure the coolant concentration in the vehicle. Use Special Service Tool: ROB75240 Coolant/Battery Refractometer (Fahrenheit).

    • Determine the concentration desired based on the vehicle duty cycle of extreme hot or cold operating conditions.

    • Add, top-off or adjust the coolant as follows: Refer to: Specifications  .

  2. Close the radiator drain valve.
    GFD650523Courtesy of FORD MOTOR COMPANY
  3. Install the engine underbody shield and the retainers.
    GFD650521Courtesy of FORD MOTOR COMPANY
  4. Install the vacuum cooling system filler and follow the manufacturer's instructions to fill the cooling system. Refer to: Specifications 

    Use the General Equipment: Cooling System Vacuum Tester and Refiller

  5. Fill the degas bottle to the MAX FILL line.
  6. Install the degas bottle cap until it contacts the hard stop.
  7. Switch the ignition to RUN.
  8. Put the transmission in PARK.
  9. Turn the climate control system off.
  10. Enter the cooling system fill mode.

    • Press the brake pedal for 10 seconds, release.

    • Press the brake pedal for 10 seconds, release.

    • Press the accelerator pedal to 100% for 10 seconds.

  11. Hold the accelerator pedal to 100% for 1 minute. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  12. Check the coolant level and fill to the MAX line on the degas bottle. Check if the thermostat is open. If the thermostat is open, the lower radiator hose will be hot.
  13. Hold the accelerator pedal to 100% for 5 minutes. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  14. Check the coolant level and fill to the MAX line on the degas bottle. Check if the thermostat is open. If the thermostat is open, the lower radiator hose will be hot.
  15. Repeat steps 13 and 14 until the thermostat is open
  16. Hold the accelerator pedal to 100% for 1 minute. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  17. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.

    Check the engine coolant level in degas bottle and if necessary fill to the top of the MAX FILL line on the degas bottle.

  18. Install the pressure relief cap.
    GFD650524Courtesy of FORD MOTOR COMPANY

    Filling and Bleeding without a Vacuum Cooling System Filler 

    • NOTE: Use the correct coolant. Do not mix coolant types. Mixing coolant types may degrade the coolant corrosion protection and may damage the engine or cooling system. For the correct coolant specified for this vehicle, refer to SPECIFICATIONS  .
      NOTE: Engine coolant provides boil protection, corrosion protection, freeze protection and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle.
      NOTE: Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
      NOTE: Ford Motor Company does NOT recommend the use of recycled engine coolant since a Ford- approved recycling process is not yet available.

      When adding or topping off the engine coolant:

    • Measure the coolant concentration in the vehicle. Use Special Service Tool: ROB75240 Coolant/Battery Refractometer (Fahrenheit).

    • Determine the concentration desired based on the vehicle duty cycle of extreme hot or cold operating conditions.

    • Add, top-off or adjust the coolant as follows: Refer to: Specifications  .

  20. Close the radiator drain valve.
    GFD650523Courtesy of FORD MOTOR COMPANY
  21. Fill the degas bottle until engine coolant flows from the heater inlet tube.
  22. Install the engine underbody shield and the retainers.
    GFD650521Courtesy of FORD MOTOR COMPANY
  23. Fill the degas bottle to the MAX FILL line.
  24. Install the degas bottle cap until it contacts the hard stop.
  25. Switch the ignition to RUN.
  26. Put the transmission in PARK.
  27. Turn the climate control system off.
  28. Enter the cooling system fill mode.

    • Press the brake pedal for 10 seconds, release.

    • Press the brake pedal for 10 seconds, release.

    • Press the accelerator pedal to 100% for 10 seconds.

  29. Hold the accelerator pedal to 100% for 1 minute. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  30. Check the coolant level and fill to the MAX line on the degas bottle. Check if the thermostat is open. If the thermostat is open, the lower radiator hose will be hot.
  31. Hold the accelerator pedal to 100% for 5 minutes. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  32. Check the coolant level and fill to the MAX line on the degas bottle. Check if the thermostat is open. If the thermostat is open, the lower radiator hose will be hot.
  33. Repeat steps 31 and 32 until the thermostat is open
  34. Hold the accelerator pedal to 100% for 1 minute. The coolant pump will operate at 100% and the engine will operate at 2, 000 rpm.
  35. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.

    Check the engine coolant level in degas bottle and if necessary fill to the top of the MAX FILL line on the degas bottle.

  36. Install the pressure relief cap.
GFD650524Courtesy of FORD MOTOR COMPANY
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