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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 855 (Engine - 4.6L (2V) - F-150) >> Removal >> Cylinder Head >> All cylinder heads

All cylinder heads

WARNING: This page is about a different car, the 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine. For additional information, refer to Engine  in this article.
  2. Remove the 6 bolts and the flexplate.
    3. Fig 1: Locating Flexplate Bolts
    GF0002679Courtesy of FORD MOTOR CO.
  3. Remove the spacer plate.
    4. Fig 2: Locating Spacer Plate
    GF0002680Courtesy of FORD MOTOR CO.
  4. Install the engine onto a suitable engine stand.
  5. Remove the 3 bolts and the RH engine support insulator.
    6. Fig 3: Identifying RH Engine Support Insulator Bolts
    G03933620Courtesy of FORD MOTOR CO.
    NOTE: LH shown, RH similar.
  6. Remove the cylinder block drain plugs and drain the coolant into a suitable container.
    7. Fig 4: Locating Cylinder Block Drain Plug
    G03885619Courtesy of FORD MOTOR CO.
    NOTE: LH shown, RH similar.
  7. Install the cylinder block drain plugs.
    • Tighten to 24 Nm (18 lb-ft).
    8. Fig 5: Locating Cylinder Block Drain Plug
    G03885619Courtesy of FORD MOTOR CO.
  8. Disconnect the engine oil pressure (EOP) sensor electrical connector.
    9. Fig 6: Locating Engine Oil Pressure Sensor Electrical Connector
    GF0002681Courtesy of FORD MOTOR CO.
  9. Disconnect the knock sensor (KS) electrical connector and the wiring harness pin-type retainer.
    10. Fig 7: Disconnecting Knock Sensor (KS) Electrical Connector And Wiring Harness Pin-Type Retainer
    GF0002682Courtesy of FORD MOTOR CO.
  10. Disconnect the camshaft position (CMP) sensor electrical connector.
    11. Fig 8: Locating Camshaft Position (CMP) Sensor Electrical Connector
    G03885221Courtesy of FORD MOTOR CO.
  11. Disconnect the crankshaft position (CKP) sensor electrical connector.
    12. Fig 9: Disconnecting Crankshaft Position (CKP) Sensor Electrical Connector
    GF0002667Courtesy of FORD MOTOR CO.
  12. Remove the nut and the upper radiator hose bracket.
    13. Fig 10: Locating Upper Radiator Hose Bracket Bolts
    GF0002609Courtesy of FORD MOTOR CO.
  13. Disconnect the LH radio ignition interference capacitor and cylinder head temperature (CHT) sensor electrical connectors.
    14. Fig 11: Locating LH Radio Ignition Interference Capacitor And Cylinder Head Temperature (CHT) Sensor Electrical Connectors
    G03962635Courtesy of FORD MOTOR CO.
  14. Disconnect the RH radio ignition interference capacitor electrical connector.
    15. Fig 12: Locating RH Radio Ignition Interference Capacitor Electrical Connector
    G03885622Courtesy of FORD MOTOR CO.
  15. Disconnect the engine wiring harness retainers from the valve cover studs and remove the electrical harness from the engine assembly.
    16. NOTE: RH shown, LH similar.
  16. Remove the nuts and the 2 radio interference capacitors.
    17. Fig 13: Identifying Radio Frequency Interference Capacitors
    G03906363Courtesy of FORD MOTOR CO.
  17. Remove the bolt and the CMP sensor.
    18. Fig 14: Locating Bolt And LH CMP Sensor
    G03919989Courtesy of FORD MOTOR CO.
  18. Remove the bolt and the CKP sensor.
    19. Fig 15: Locating Crankshaft Position (CKP) Sensor Bolt
    G03920231Courtesy of FORD MOTOR CO.
    CAUTION: 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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
    NOTE: The bolts are part of the valve cover and should not be removed.
    NOTE: LH shown, RH similar.
  19. Remove the valve covers.
    • Fully loosen the bolts and remove the valve covers.
    • Clean the valve cover mating surface of the cylinder heads with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
    20. Fig 16: Identifying Valve Covers
    GF0002683Courtesy of FORD MOTOR CO.
  20. Remove the bolts, the coolant pump pulley and the accessory drive belt idler pulleys.
    21. Fig 17: Locating Coolant Pump Pulley And Accessory Drive Belt Idler Pulley Bolts
    G03933688Courtesy of FORD MOTOR CO.
  21. Remove the bolts and the accessory drive belt tensioner.
    22. Fig 18: Identifying Accessory Drive Belt Tensioner Bolts
    G03920234Courtesy of FORD MOTOR CO.
  22. Remove the crankshaft pulley bolt and washer.
    • Discard the crankshaft pulley bolt.
  23. Using the special tool, remove the crankshaft pulley.
    24. Fig 19: Removing Crankshaft Pulley Using Special Tool
    G03919906Courtesy of FORD MOTOR CO.
  24. Using the special tool, remove and discard the crankshaft front seal.
    25. Fig 20: Removing Crankshaft Front Seal Using Special Tool
    G03919889Courtesy of FORD MOTOR CO.
  25. Remove the 4 front oil pan bolts.
    26. Fig 21: Locating Front Oil Pan Bolts
    GF0002684Courtesy of FORD MOTOR CO.
    NOTE: Correct fastener location is essential for assembly procedure. Record the fastener location.
  26. Remove the fasteners.
    27. Fig 22: Locating Fasteners
    GF0002612Courtesy of FORD MOTOR CO.
    CAUTION: 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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
  27. Remove the engine front cover from the front cover-to-cylinder block dowel.
    • Remove the engine front cover gaskets.
    • Clean the mating surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
    • Inspect the mating surfaces.
    28. Fig 23: Removing Engine Front Cover From Front Cover-To-Cylinder Block Dowel
    GF0000327Courtesy of FORD MOTOR CO.
    CAUTION: Use care when removing the spark plugs.
    NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
  28. Remove the 8 spark plugs.
    29. NOTE: Camshaft roller follower is shown removed for clarity.
  29. Install the special tool between the valve spring coils to prevent valve stem seal damage.
    30. Fig 24: Installing Special Tool Between Valve Spring Coils
    G03962476Courtesy of FORD MOTOR CO.
    NOTE: The camshaft roller followers must be reinstalled in their original locations. Record the camshaft roller follower locations.
    NOTE: Position the cam lobe away from the camshaft roller follower prior to removing each camshaft roller follower.
  30. Using the special tool, compress the valve springs and remove the camshaft roller followers.
    31. Fig 25: Using Special Tool To Compress Valve Springs And Remove Camshaft Roller Follower
    GF0002626Courtesy of FORD MOTOR CO.
    NOTE: The camshaft roller followers must be reinstalled in their original locations.
  31. Repeat the previous 3 steps for each of the roller followers.
  32. Remove the crankshaft sensor ring from the crankshaft.
    33. Fig 26: View Of Crankshaft Sensor Ring At Crankshaft
    G04583449Courtesy of FORD MOTOR CO.
  33. Rotate the crankshaft until the timing mark on the RH camshaft sprocket is approximately at the 11 o'clock position and the timing mark on the LH camshaft sprocket is approximately at the 12 o'clock position.
    34. Fig 27: Identifying Timing Mark On Camshaft Sprocket
    GF0002619Courtesy of FORD MOTOR CO.
    CAUTION: If one or both of the tensioner mounting bolts are loosened or removed, the tensioner-sealing bead must be inspected for seal integrity. If cracks, tears, separation from the tensioner body or permanent compression of the seal bead is observed, install a new tensioner.
  34. Remove the timing chain tensioning system from both timing chains.
    1. Remove the bolts.
    2. Remove the timing chain tensioners.
    3. Remove the timing chain tensioner arms.
    35. Fig 28: Identifying Timing Chain Tensioning System
    G03962450Courtesy of FORD MOTOR CO.
  35. Remove the timing chains and crankshaft sprocket.
    36. Fig 29: View Of Left And Right Timing Chains, Sprockets And Crankshaft Gear
    G03885313Courtesy of FORD MOTOR CO.
  36. Remove the timing chain guides.
    • Remove the bolts.
    • Remove the LH timing chain guide.
    • Remove the bolts.
    • Remove the RH timing chain guide.
    37. Fig 30: Identifying Timing Chain Guides
    G03962452Courtesy of FORD MOTOR CO.


  1. Install the special tools on both ends of the cylinder head being serviced.
    2. Fig 1: Identifying Special Tool
    G04671899Courtesy of FORD MOTOR CO.
    CAUTION: The cylinder head must be cool before removing it from the engine. Cylinder head warpage can result if a warm or hot cylinder head is removed.
    CAUTION: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine.
    CAUTION: The cylinder head bolts must be discarded and new bolts must be installed. They are tighten-to-yield designed and cannot be reused.
    CAUTION: 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.
    CAUTION: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
    NOTE: LH shown, RH similar.
  2. Remove the bolts and the cylinder head.
    • Discard the cylinder head gasket.
    • Discard the cylinder head bolts.
    3. Fig 2: Identifying Cylinder Head Gasket And Bolts
    GF0000350Courtesy of FORD MOTOR CO.
    CAUTION: 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.
    CAUTION: Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.
    NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the surfaces.
  3. Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder head and the cylinder block.
    • Remove any large deposits of silicone or gasket material with a plastic scraper.
    • Apply silicone gasket remover, following package directions, and allow to set for several minutes.
    • Remove the silicone gasket remover with a plastic scraper. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
    • Apply metal surface prep, following package directions, to remove any remaining traces of oil or coolant and to prepare the surfaces to bond with the new gasket. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
    4. NOTE: Make sure all cylinder head surfaces are clear of any gasket material, RTV, oil and coolant. The cylinder head surface must be clean and dry before running a flatness check.
    NOTE: Use a straightedge that is calibrated by the manufacturer to be flat with 0.005 mm (0.0002 in) per running foot length. For example, if the straightedge is 61 cm (24 in) long, the machine edge must be flat with 0.010 mm (0.0004 in) from end to end.
    NOTE: LH shown, RH similar.
  4. Support the cylinder head on a bench with the head gasket side up. Inspect all areas of the deck face with a straightedge, paying particular attention to the oil pressure feed area. The cylinder head must not have depressions deeper than 0.0254 mm (0.001 in) across a 38.1 mm (1.5 in) square area, or scratches more than 0.0254 mm (0.001 in).
    5. Fig 3: Identifying Cylinder Head/Cylinder Block Oil Pressure Feed Areas
    G03885653Courtesy of FORD MOTOR CO.
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