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Cylinder Head: Removal

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

The intake manifold will be removed with the cylinder head.

  1. Perform the fuel system pressure release procedure. Refer to STANDARD PROCEDURE .
  2. Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable.
  3. Remove the engine cover and clean air hose. Refer to REMOVAL .
  4. Remove the air cleaner body. Refer to REMOVAL  .
  5. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  6. Remove the transmission skid plate, if equipped. Refer to PLATE, SKID, TRANSMISSION, REMOVAL .
  7. Remove the belly pan, if equipped. Refer to BELLY PAN, REMOVAL .
  8. Drain the cooling system. Refer to STANDARD PROCEDURE .
    GC0169309Courtesy of CHRYSLER GROUP, LLC
  9. Remove the MAP sensor (1). Refer to SENSOR, MANIFOLD AIR PRESSURE (MAP), REMOVAL .
  10. Disengage the two wire harness retainers (2) from the intake manifold.
    GC0156353Courtesy of CHRYSLER GROUP, LLC
  11. Remove the bolt (2), two nuts (1) and the lower intake manifold support bracket (3).
  12. Remove the support and lower the vehicle.
    GC0155766Courtesy of CHRYSLER GROUP, LLC
  13. Disconnect the throttle body wire harness connector (1) and remove the wire harness retainer (3) from the throttle body (2).
    GC0169971Courtesy of CHRYSLER GROUP, LLC
  14. Disconnect the purge vapor line (2) from the purge solenoid.
    15. NOTE:

    Wrap shop towels around hose to catch any gasoline spillage.

  15. Disconnect the fuel line (1) from the fuel rail. Refer to STANDARD PROCEDURE .
    GC0169994Courtesy of CHRYSLER GROUP, LLC
  16. To remove the foam pad, cut the pad along the score line (1). Make sure care is taken to not make contact with any other components while cutting the pad. Do not cut beyond the line  . Remove the pad from the fuel rail once split.
    GC0169966Courtesy of CHRYSLER GROUP, LLC
  17. Disconnect the brake booster hose (1) from the intake manifold, if equipped.
  18. Disengage the two wire harness retainers (3) from the intake manifold.
    GC0169941Courtesy of CHRYSLER GROUP, LLC
  19. Unlock and disconnect the purge solenoid wire harness connector (1).
  20. Unlock and disconnect the four VVAA solenoid wire harness connectors (3).
  21. Unlock and disconnect the four fuel injector wire harness connectors (4).
  22. Remove the vacuum pump and thermostat. Refer to THERMOSTAT, REMOVAL .
  23. Remove the ignition coils and cylinder head cover. Refer to REMOVAL  .
  24. Remove the exhaust manifold. Refer to MANIFOLD, EXHAUST, REMOVAL .
    GC0169937Courtesy of CHRYSLER GROUP, LLC
  25. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
    CAUTION:

    When aligning timing marks, always rotate engine by turning the crankshaft. Failure to do so will result in valve or piston damage.

  26. Rotate the crankshaft clockwise (as viewed from the front) to align the timing cover mark (1) with the damper notch (2) to place the number one cylinder piston at top-dead-center on the compression stroke.
    GC0169101Courtesy of CHRYSLER GROUP, LLC
  27. Remove the engine timing cover, tensioner and timing chain. Refer to CHAIN AND SPROCKETS, TIMING, REMOVAL .
  28. Remove the tensioner arm bolt (3), bushing and tensioner arm (4).
  29. Remove the fixed chain guide bolts (2) and the timing chain guide (1).
  30. Remove the Variable Valve Actuation Assembly (VVAA). Refer to ASSEMBLY, VARIABLE VALVE ACTUATION, REMOVAL .
  31. Remove the camshaft. Refer to REMOVAL  .
    NOTE:

    If the rocker arms are to be reused, identify their positions so that they can be reassembled into their original locations.

    GC0170027Courtesy of CHRYSLER GROUP, LLC
  32. Remove the rocker arms (1).
    NOTE:

    If the hydraulic lash adjusters are to be reused, identify their positions so that they can be reassembled into their original locations.

    GC0169933Courtesy of CHRYSLER GROUP, LLC
  33. Remove the hydraulic lash adjusters (1).
    GC0169951Courtesy of CHRYSLER GROUP, LLC
  34. Remove the cylinder head bolts.
    NOTE:

    There is a foam insulator that is sandwiched between the intake manifold and the engine block that may fall off when the cylinder head is removed. The foam pad must be reinstalled during assembly.

    GC0169287Courtesy of CHRYSLER GROUP, LLC
  35. Remove the cylinder head and intake manifold from the engine block.
  36. Remove and discard the cylinder head gasket (2).
    GC0169127Courtesy of CHRYSLER GROUP, LLC
  37. Remove the Variable Valve Actuation Assembly (VVAA) oil supply filter (1) from the engine block.
    GC0155590Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    If required, remove the intake manifold from the cylinder head:

  38. Remove the nut (1), bolt (3) and the throttle body support bracket (2).
    GC0155794Courtesy of CHRYSLER GROUP, LLC
  39. Remove the four screws (1) and the intake manifold silencer cover.
    GC0155603Courtesy of CHRYSLER GROUP, LLC
  40. Remove the five bolts (1 and 2) and remove the intake manifold from the cylinder head.
  41. Inspect the cylinder head and cylinder head components. Refer to INSPECTION  .
NOTE:

Ensure cylinder head bolt holes in the block are clean, dry (free of residual oil or coolant), and threads are not damaged.

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