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Home >> Ford >> 2021 >> Explorer Limited Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine - 2.3L ECOBOOST (201KW/273PS)) >> Removal And Installation >> Cylinder Head >> Removal

Cylinder Head: Removal

WARNING: This page is about a different variant/trim than selected.
NOTE: Do not loosen or remove the crankshaft pulley bolt without first installing the special tools as instructed in this procedure. The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction. For that reason, the crankshaft sprocket is also unfastened if the pulley bolt is loosened. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by the special service tools, otherwise severe engine damage can occur.
NOTE: During engine repair procedures, cleanliness is extremely important. All parts must be thoroughly cleaned and any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan, can cause engine failure.
  1. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
  2. Release the fuel system pressure. Refer to: Fuel System Pressure Release .
  3. Drain the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
  4. Remove the pin-type retainers, bolts and the rear underbody shield.
    GFD510498Courtesy of FORD MOTOR COMPANY
  5. Remove the following items:

    1. Remove the intake manifold. Refer to: Intake Manifold .
    2. Remove the CAC intake pipe. Refer to: Charge Air Cooler (CAC) Intake Pipe .
    3. Remove the valve tappets. Refer to: Valve Tappets .
    4. Remove EGR cooler. Refer to: Exhaust Gas Recirculation (EGR) Cooler .
    5. Remove EGR inlet tube. Refer to: Exhaust Gas Recirculation (EGR) Inlet Tube .

  6. Loosen the clamp and position the degas bottle coolant hose aside.
    GFD510499Courtesy of FORD MOTOR COMPANY
    1. Remove the coolant tube bolt.
    2. Remove the torx bolt and position the coolant tube and hose aside.
    GFD510500Courtesy of FORD MOTOR COMPANY
  8. Remove and discard the coolant tube O-ring seal.
    GFD510501Courtesy of FORD MOTOR COMPANY
  9. Detach the wiring harness retainers from the coolant outlet stud bolts.
    GFD510502Courtesy of FORD MOTOR COMPANY
  10. Remove the bolt and ground wire.
    GFD510503Courtesy of FORD MOTOR COMPANY
    • Disconnect the KS wiring harness electrical connectors.

    • Disconnect the fuel rail wiring harness electrical connectors.

    • Detach the wiring harness retainers and remove the wiring harness.

    GFD510504Courtesy of FORD MOTOR COMPANY
  12. Remove the fuel rail insulator shield.
    GFD510505Courtesy of FORD MOTOR COMPANY
  13. Release the clamp and position the coolant hose aside. Use the General Equipment: Hose Clamp Remover/Installer
    GFD510506Courtesy of FORD MOTOR COMPANY
  14. Remove the nuts, bolt and the turbocharger heat shield.
    GFD510507Courtesy of FORD MOTOR COMPANY
  15. Remove the turbocharger nuts and the studs.
    GFD510508Courtesy of FORD MOTOR COMPANY
    • Remove the cylinder head bolts.

    • Discard the bolts.

    GFD510509Courtesy of FORD MOTOR COMPANY
  17. NOTE: When removing or installing the cylinder head, use care to prevent excessive movement of the turbocharger. Excessive movement may cause damage to the turbocharger oil return tube resulting in an engine oil leak.

    With the aid of an assistant, lift the cylinder head to clear the locating dowels in the cylinder block and remove the cylinder head.

    GFD510510Courtesy of FORD MOTOR COMPANY
  18. Remove and discard the turbocharger gasket.
    GFD510511Courtesy of FORD MOTOR COMPANY
  19. Remove and discard the cylinder head gasket.
    GFD510512Courtesy of FORD MOTOR COMPANY
  20. NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.

    Clean the cylinder head sealing surfaces.

    GFD510513Courtesy of FORD MOTOR COMPANY
  21. NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.
    NOTE: Clean the cylinder head bolt holes in the cylinder block. Make sure all coolant, oil or other foreign material is removed.

    Clean the cylinder block sealing surfaces.

    GFD510514Courtesy of FORD MOTOR COMPANY
  22. Inspect the cylinder head sealing surfaces.
    GFD510515Courtesy of FORD MOTOR COMPANY

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