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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Engine Mechanical - 5.8L (4V)) >> Removal >> Cylinder Head

Cylinder Head

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOLS

G06061933
 3 Jaw Puller
303-D121 or equivalent
G06168017
 Compressor, Valve Spring
303-452 (T93P-6565-AR)
G07441694
 Remover, Oil Seal
303-409 (T92C-6700-CH)
G07958537
 Strap Wrench
303-D055 (D85L-6000-A) or equivalent
MATERIAL SPECIFICATIONS

Item Specification
Motorcraft® Metal Surface Prep
ZC-31-A		 -
Motorcraft® Silicone Gasket Remover
ZC-30		 -
NOTE: During engine repair procedures, cleanliness is extremely important. 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.

Both cylinder heads 

  1. Remove the engine from the vehicle. For additional information, refer to ENGINE .
  2. Remove the 8 flywheel bolts.
  3. NOTE: The flywheel is a press fit on the crankshaft pilot. Do not use screwdrivers or prybars to remove the flywheel or damage to the flywheel or engine may occur.

    Remove the flywheel.

    • Install 2 of the removed flywheel bolts in the 2 holes shown in illustration on the flywheel flange.
    • Tighten the 2 bolts evenly to push the flywheel off the crankshaft pilot.
      Fig 1: Locating Flywheel Bolts Holes
      G06394765Courtesy of FORD MOTOR CO.
  4. Remove the engine/transmission spacer plate.
    Fig 2: Locating Engine-To-Transmission Spacer Plate
    G06394814Courtesy of FORD MOTOR CO.
  5. Mount the engine on a suitable work stand.
    Fig 3: Locating Engine Work Stand Mounting Arms
    G07988953Courtesy of FORD MOTOR CO.
  6. If equipped, disconnect the coolant hose from the oil cooler.
    G08643215
  7. If equipped, disconnect the coolant hose from the thermostat housing.
    Fig 4: Locating Thermostat Housing Coolant Hose Clamp
    G06394816Courtesy of FORD MOTOR CO.
  8. If equipped, remove the coolant tube bracket nut and the coolant tube.
    Fig 5: Locating Coolant Tube Bracket And Nut
    G07988955Courtesy of FORD MOTOR CO.
  9. Remove the engine vent hose from the intake manifold.
    G08643218
  10. Disconnect the 2 upper radiator hoses from the intake manifold.
    Fig 6: Locating Upper Radiator Hoses Clamps
    G06394819Courtesy of FORD MOTOR CO.
  11. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.
    Fig 7: Locating Engine Coolant Temperature Sensor Electrical Connector
    G06394820Courtesy of FORD MOTOR CO.
  12. Remove the 2 nuts and the thermostat housing assembly.
    Fig 8: Locating Thermostat Housing Assembly Nuts
    G06394821Courtesy of FORD MOTOR CO.
  13. Disconnect the coolant hose from the Charge Air Cooler (CAC).
    Fig 9: Locating Coolant Hose Clamp
    G06394822Courtesy of FORD MOTOR CO.
  14. Remove the 3 bolts and the alternator.
    Fig 10: Locating Alternator Bolts
    G07988965Courtesy of FORD MOTOR CO.
  15. Remove the bolt and the accessory drive belt tensioner.
    Fig 11: Locating Accessory Drive Belt Tensioner And Bolt
    G06394832Courtesy of FORD MOTOR CO.
  16. Remove the 3 bolts and the accessory drive belt idler pulley.
    Fig 12: Locating Accessory Drive Belt Idler Pulley Bolts
    G07988969Courtesy of FORD MOTOR CO.
  17. Remove the stud bolt and the accessory drive belt idler pulley (smooth).
    Fig 13: Locating Stud Bolt And Accessory Drive Belt Idler Pulley (Smooth)
    G06394833Courtesy of FORD MOTOR CO.
  18. Remove the bolt and the accessory drive belt idler pulley (grooved).
    Fig 14: Locating Bolt And Accessory Drive Belt Idler Pulley (Grooved)
    G06394834Courtesy of FORD MOTOR CO.
  19. Using the Strap Wrench, remove the 4 bolts and the coolant pump pulley.
    Fig 15: Locating Coolant Pump Pulley And Bolts
    G06382398Courtesy of FORD MOTOR CO.
  20. Remove the 3 bolts and the 3 SC drive belt idler pulleys.
    Fig 16: Locating SC Drive Belt Idler Pulleys And Bolts
    G06394836Courtesy of FORD MOTOR CO.
  21. Disconnect the 2 EGR tube fittings.
    • Remove the EGR tube.
      Fig 17: Locating EGR Tube Fittings And EGR Tube
      G06394837Courtesy of FORD MOTOR CO.
  22. Disconnect and remove the crankcase ventilation tube.
    G07988975
  23. Disconnect the Evaporative Emission (EVAP) canister purge valve electrical connector.
    Fig 18: Locating Evaporative Emission Canister Purge Valve Electrical Connector
    G07988977Courtesy of FORD MOTOR CO.
  24. Disconnect the Throttle Position (TP) sensor and Electronic Throttle Control (ETC) electrical connectors.
    Fig 19: Locating Throttle Position Sensor And Electronic Throttle Control Electrical Connectors
    G07988976Courtesy of FORD MOTOR CO.
  25. Remove the 4 bolts and the Throttle Body (TB) and spacer assembly.
    • Discard the gasket.
      Fig 20: Locating Throttle Body And Spacer Assembly Bolts
      G07988978Courtesy of FORD MOTOR CO.
  26. Disconnect the Cylinder Head Temperature (CHT) sensor electrical connector.
    Fig 21: Locating Cylinder Head Temperature Sensor Electrical Connector
    G06394842Courtesy of FORD MOTOR CO.
  27. Detach the 2 wiring harness pin-type retainers (1 shown in illustration) from the coolant tube assembly bracket.
    Fig 22: Locating Wiring Harness Pin-Type Retainers
    G06394843Courtesy of FORD MOTOR CO.
  28. Disconnect the bubbler hose from the SC.
    Fig 23: Locating Bubbler Hose Clamp
    G06394845Courtesy of FORD MOTOR CO.
  29. Remove the 2 bolts and the wiring harness retaining bracket.
    Fig 24: Locating Wiring Harness Retaining Bracket And Bolts
    G06394846Courtesy of FORD MOTOR CO.
  30. Detach the 2 wiring harness pin-type retainers.
    Fig 25: Locating Wiring Harness Pin-Type Retainers
    G06394847Courtesy of FORD MOTOR CO.
  31. Disconnect the PCV valve electrical connector.
    Fig 26: Locating PCV Valve Electrical Connector
    G06394848Courtesy of FORD MOTOR CO.
  32. Disconnect the 4 RH fuel injector electrical connectors.
    Fig 27: Locating RH Fuel Injector Electrical Connectors
    G06394849Courtesy of FORD MOTOR CO.
  33. Disconnect the fuel rail pressure and temperature sensor electrical connector.
    Fig 28: Locating Fuel Rail Pressure And Temperature Sensor Electrical Connector
    G06394850Courtesy of FORD MOTOR CO.
  34. Remove the nut and position aside the RH radio interference capacitor.
    Fig 29: Locating RH Radio Interference Capacitor And Nut
    G06394851Courtesy of FORD MOTOR CO.
  35. Disconnect the EGR valve electrical connector.
    Fig 30: Locating EGR Valve Electrical Connector
    G06394852Courtesy of FORD MOTOR CO.
  36. Detach the 2 wiring harness retainers from the RH coil-on-plug cover stud bolts.
    G07988990
  37. Detach the wiring harness retainers from the RH valve cover stud bolts.
    Fig 31: Locating Wiring Harness Retainers On RH Valve Cover Stud Bolts
    G06394854Courtesy of FORD MOTOR CO.
  38. Remove the nut and the A/C tube support bracket.
    Fig 32: Locating A/C Tube Support Bracket And Nut
    G06394855Courtesy of FORD MOTOR CO.
  39. Remove the 2 stud bolts and the RH coil-on-plug cover.
    G07988993
  40. Disconnect the 4 RH coil-on-plug electrical connectors.
    • Remove the 4 RH coil-on-plugs.
      Fig 33: Locating RH Coil-On-Plug Electrical Connectors
      G06394857Courtesy of FORD MOTOR CO.
  41. Disconnect the Camshaft Position (CMP) sensor electrical connector.
    Fig 34: Locating Camshaft Position (CMP) Sensor Electrical Connector
    G06394859Courtesy of FORD MOTOR CO.
  42. Disconnect the Intake Air Temperature 2 (IAT2) sensor electrical connector.
    Fig 35: Locating Intake Air Temperature 2 (IAT2) Sensor Electrical Connector
    G06394860Courtesy of FORD MOTOR CO.
  43. Disconnect the 4 LH fuel injector electrical connectors.
    Fig 36: Locating LH Fuel Injector Electrical Connectors
    G06394861Courtesy of FORD MOTOR CO.
  44. Remove the nut and position aside the LH radio interference capacitor.
    Fig 37: Locating LH Radio Interference Capacitor And Nut
    G06394862Courtesy of FORD MOTOR CO.
  45. Detach the wiring harness retainers from the LH valve cover stud bolts.
    Fig 38: Locating Wiring Harness Retainers On LH Valve Cover Stud Bolts
    G06394863Courtesy of FORD MOTOR CO.
  46. Remove the 2 bolts and the LH coil-on-plug cover.
    G07989001
  47. Disconnect the 4 LH coil-on-plug electrical connectors.
    • Remove the 4 LH coil-on-plugs.
      Fig 39: Locating LH Coil-On-Plug Electrical Connectors
      G06394865Courtesy of FORD MOTOR CO.
  48. Remove the wiring harness assembly from the engine.
  49. Disconnect the intake manifold-to-coolant tube assembly hose.
    Fig 40: Locating Intake Manifold-To-Coolant Tube Assembly Hose Clamp
    G06394866Courtesy of FORD MOTOR CO.
  50. NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

    Remove the 14 bolts and the intake manifold assembly.

    • Remove and discard the 2 intake manifold gaskets.
      G08643258
  51. Remove the 3 coolant tube assembly bolts.
    Fig 41: Locating Coolant Tube Assembly Bolts
    G06394868Courtesy of FORD MOTOR CO.
  52. NOTE: A new oil cooler must be installed or severe damage to the engine can occur.
    NOTE: Oil cooler shown in illustration, oil cooler thermostat similar.

    Remove the 6 bolts and the oil cooler.

    • Discard the oil cooler and the gaskets.
      Fig 42: Locating Oil Cooler Bolts
      G06394869Courtesy of FORD MOTOR CO.
  53. Remove the 8 bolts and the oil filter adapter.
    • Remove and discard the oil filter adapter gasket.
      Fig 43: Locating Oil Filter Adapter Bolts
      G06394870Courtesy of FORD MOTOR CO.
  54. Remove the oil level indicator, the bolt and the oil level indicator tube.
    • Remove and discard the oil level indicator tube O-ring seal.
      Fig 44: Locating Oil Level Indicator Tube And Bolt
      G06394871Courtesy of FORD MOTOR CO.
  55. NOTE: The RH engine support insulator bracket must be removed to access the RH block drain plug.

    If equipped with a cylinder block drain, remove the stud bolt, 3 bolts and the RH engine support insulator bracket.

    Fig 45: Locating RH Engine Support Insulator Bracket And Bolts
    G06394872Courtesy of FORD MOTOR CO.
  56. NOTE: LH shown in illustration, RH similar.

    If equipped, remove the LH and RH block drain plugs.

    Fig 46: Locating Block Drain Plug
    G06394873Courtesy of FORD MOTOR CO.
  57. 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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.

    Remove the bolts, stud bolts and RH valve cover.

    • Remove and discard the gaskets.
    • Clean the mating surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
    • Inspect the mating surfaces.
      Fig 47: Locating RH Valve Cover Bolts
      G06395034Courtesy of FORD MOTOR CO.
  58. 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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.

    Remove the bolts, stud bolts and LH valve cover.

    • Remove and discard the gaskets.
    • Clean the mating surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
    • Inspect the mating surfaces.
      Fig 48: Locating LH Valve Cover Bolts
      G06394874Courtesy of FORD MOTOR CO.
  59. Remove the bolt and the Crankshaft Position (CKP) sensor.
    Fig 49: Locating Crankshaft Position (CKP) Sensor And Bolt
    G06394875Courtesy of FORD MOTOR CO.
  60. Remove the bolt and the CMP sensor.
    Fig 50: Locating CMP Sensor And Bolt
    G06394876Courtesy of FORD MOTOR CO.
  61. Remove the 4 bolts and the coolant pump.
    Fig 51: Locating Coolant Pump Bolts
    G06394877Courtesy of FORD MOTOR CO.
  62. Using the Strap Wrench, remove the crankshaft pulley bolt and the washer.
    • Discard the bolt.
      Fig 52: Removing/Installing Crankshaft Pulley Bolt And Washer Using Strap Wrench
      G07408870Courtesy of FORD MOTOR CO.
  63. Using the 3 Jaw Puller, remove the crankshaft pulley.
    Fig 53: Removing Crankshaft Pulley Using Jaw Puller
    G06394606Courtesy of FORD MOTOR CO.
  64. NOTE: Use care not to damage the engine front cover or the crankshaft when removing the seal.

    Using the Oil Seal Remover, remove the crankshaft front oil seal.

    G07408874
  65. Remove the oil pan-to-engine front cover bolt and the 3 oil pan-to-engine front cover stud bolts.
    Fig 54: Locating Oil Pan-To-Engine Front Cover Stud Bolts
    G08643273Courtesy of FORD MOTOR CO.
  66. Remove the 16 bolts and the engine front cover.
    • Remove and discard the engine front cover gaskets.
    • 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 which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.

      Clean the mating surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.

    • Inspect the mating surfaces.
      G08642937
  67. NOTE: Only use hand tools when removing or installing the spark plugs, or damage may occur to the cylinder head or spark plugs.
    NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
    NOTE: RH shown in illustration, LH similar.

    Remove the 8 spark plugs.

    Fig 55: Locating Spark Plugs
    G06394883Courtesy of FORD MOTOR CO.
  68. NOTE: If the components are to be reinstalled, they must be installed in their original positions. Mark the components for installation into their original locations. Failure to follow these instructions may result in engine damage.

    Using the Valve Spring Compressor, compress the valve spring and remove the roller follower.

    Fig 56: Compressing Valve Spring Using Valve Spring Compressor
    G06394884Courtesy of FORD MOTOR CO.
  69. Repeat the previous step to remove all the roller followers. Inspect roller followers. Refer to ENGINE SYSTEM - GENERAL INFORMATION .
  70. NOTE: If the components are to be reinstalled, they must be installed in their original positions. Mark the components for installation into their original locations. Failure to follow these instructions may result in engine damage.

    Remove the hydraulic lash adjusters.

  71. Remove the crankshaft sensor ring.
    Fig 58: Locating Crankshaft Sensor Ring
    G06394638Courtesy of FORD MOTOR CO.
  72. Remove the crankshaft washer.
    Fig 59: Locating Crankshaft Washer
    G06394639Courtesy of FORD MOTOR CO.
  73. Remove the 2 bolts and the RH primary timing chain tensioner.
    Fig 60: Locating RH Primary Timing Chain Tensioner And Bolts
    G06394640Courtesy of FORD MOTOR CO.
  74. Remove the RH primary timing chain tensioner arm.
    Fig 61: Locating RH Primary Timing Chain Tensioner Arm
    G06394641Courtesy of FORD MOTOR CO.
  75. Remove the RH primary timing chain.
    Fig 62: Locating RH Primary Timing Chain
    G06394642Courtesy of FORD MOTOR CO.
  76. Remove the 2 bolts and the RH primary timing chain guide.
    Fig 63: Locating RH Primary Timing Chain Guide And Bolts
    G06394643Courtesy of FORD MOTOR CO.
  77. Remove the 2 bolts and the LH primary timing chain tensioner.
    Fig 64: Locating LH Primary Timing Chain Tensioner And Bolts
    G06394644Courtesy of FORD MOTOR CO.
  78. Remove the LH primary timing chain tensioner arm.
    Fig 65: Locating LH Primary Timing Chain Tensioner Arm
    G06394645Courtesy of FORD MOTOR CO.
  79. Remove the LH primary timing chain.
    Fig 66: Locating LH Primary Timing Chain
    G06394646Courtesy of FORD MOTOR CO.
  80. Remove the 2 bolts and the LH primary timing chain guide.
    Fig 67: Locating LH Primary Timing Chain Guide And Bolts
    G06394647Courtesy of FORD MOTOR CO.
  81. Remove the crankshaft sprocket.
    Fig 68: Locating Crankshaft Sprocket
    G06394648Courtesy of FORD MOTOR CO.

    LH cylinder head 

  82. Disconnect the 2 LH Heated Oxygen Sensor (HO2S) wire retainers.
    G08643289
  83. Remove 8 nuts and the LH exhaust manifold.
    • Discard the nuts and gaskets.
      G08643290
  84. Clean and inspect the LH exhaust manifold. Refer to ENGINE SYSTEM - GENERAL INFORMATION .
  85. Remove and discard the 8 LH exhaust manifold studs.
    Fig 69: Locating LH Exhaust Manifold Studs
    G08643291Courtesy of FORD MOTOR CO.

    RH cylinder head 

  86. Remove 8 nuts and the RH exhaust manifold.
    • Discard the nuts and gaskets.
      G08643292
  87. Clean and inspect the RH exhaust manifold. Refer to ENGINE SYSTEM - GENERAL INFORMATION .
  88. Remove and discard the 8 RH exhaust manifold studs.
    Fig 70: Locating RH Exhaust Manifold Studs
    G08643293Courtesy of FORD MOTOR CO.
  89. Remove the 3 coolant tube assembly bolts.
    Fig 71: Locating Coolant Tube Assembly Bolts
    G06394899Courtesy of FORD MOTOR CO.

    Both cylinder heads 

  90. NOTE: 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.
    NOTE: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine.
    NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are a tighten-to-yield design and cannot be reused.
    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: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.
    NOTE: LH shown in illustration, RH similar.

    Remove the 10 bolts and the cylinder head.

    • Discard the bolts.
    • Remove and discard the cylinder head gaskets.
      Fig 72: Locating Cylinder Head Bolts
      G06394900Courtesy of FORD MOTOR CO.
  91. 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: 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.

    Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder head and the cylinder block in the following sequence.

    1. Remove any large deposits of silicone or gasket material with a plastic scraper.
    2. Apply silicone gasket remover, following package directions and allow to set for several minutes.
    3. 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.
    4. 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.
  92. NOTE: LH shown in illustration, RH similar.

    Support the cylinder heads on a bench with the head gasket side up. Check the cylinder head distortion and the cylinder block distortion, paying particular attention to the oil pressure feed area. Refer to ENGINE SYSTEM - GENERAL INFORMATION .

    Fig 73: Identifying Oil Pressure Feed Area
    G06126589Courtesy of FORD MOTOR CO.
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