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Home >> Ford >> 2018 >> Mustang GT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine - 2.3L ECOBOOST (231KW/314PS)) >> 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. Remove the nuts and the engine appearance cover.
    GFD284928Courtesy of FORD MOTOR COMPANY
  3. Release the fuel system pressure. Refer to: Fuel System Pressure Release .
  4. Disconnect the battery ground. Refer to: Battery Disconnect and Connect .
  5. Drain the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
  6. Remove the following items:

    1. Remove the turbocharger. Refer to: Turbocharger .
    2. Remove the intake manifold. Refer to: Intake Manifold .
    3. Remove the camshafts. Refer to: Camshafts .

  7. NOTE: If the valve tappets are to be reused, note the location of the valve tappets to make sure they are assembled in their original positions.

    Remove the valve tappets.

    GFD285214Courtesy of FORD MOTOR COMPANY
    • Detach and disconnect the fuel rail electrical connector.

    • Detach the wiring harness retainers.

    • Remove the fuel rail insulator shield.

    GFD285215Courtesy of FORD MOTOR COMPANY
  9. Disconnect and position the coolant tube aside. Use the General Equipment: Hose Clamp Remover/Installer
    GFD285216Courtesy of FORD MOTOR COMPANY
  10. Disconnect the fuel injector and the FRP sensor electrical connectors.
    GFD285217Courtesy of FORD MOTOR COMPANY
  11. Disconnect the ECT sensor electrical connector from the back of the engine.
    GFD285218Courtesy of FORD MOTOR COMPANY
    • Disconnect the crankcase vent tube sensor electrical connector and wire harness retainer.

    • Detach the crankcase vent tube retainer and remove.

    GFD285219Courtesy of FORD MOTOR COMPANY
    • Disconnect the upper radiator hose from the coolant outlet tube. Use the General Equipment: Hose Clamp Remover/Installer

    • Disconnect the coolant by-pass hose from the degas bottle. Use the General Equipment: Hose Clamp Remover/Installer

    GFD285220Courtesy of FORD MOTOR COMPANY
  14. Remove the bolt from the cylinder head and remove the coolant tube from coolant outlet.
    GFD285221Courtesy of FORD MOTOR COMPANY
  15. Remove and discard the coolant tube O-ring seal.
    GFD285222Courtesy of FORD MOTOR COMPANY
  16. Slide the insulator up and disconnect the CHT sensor electrical connector.
    GFD285223Courtesy of FORD MOTOR COMPANY
  17. Remove the bolts and the coolant tube.
    GFD285224Courtesy of FORD MOTOR COMPANY
  18. Inspect the coolant tube O-ring seal and replace if necessary.
    GFD285225Courtesy of FORD MOTOR COMPANY
  19. Remove the bolt and the ground wire.
    GFD285226Courtesy of FORD MOTOR COMPANY
  20. Disconnect the heater hose from the coolant outlet. Use the General Equipment: Hose Clamp Remover/Installer
    GFD285227Courtesy of FORD MOTOR COMPANY
    • Remove the bolts and the cylinder head.

    • Discard the bolts.

    GFD285228Courtesy of FORD MOTOR COMPANY
  22. Remove and discard the cylinder head gasket.
    GFD285229Courtesy of FORD MOTOR COMPANY
  23. 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.

    Make sure that the mating faces are clean and free of foreign material.

    GFD285230Courtesy of FORD MOTOR COMPANY
  24. Check the cylinder head distortion. Refer to: Cylinder Head Distortion .
  25. Check the cylinder block distortion. Refer to: Cylinder Block Distortion .
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