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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.6L Engine (Service Information) (2 Of 2) >> Cylinder Head >> Removal >> Left Cylinder Head

Left Cylinder Head

GC0144190Courtesy of CHRYSLER GROUP, LLC
CAUTION:

The magnetic timing wheels must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.

  1. Remove the lower intake manifolds and insulator. Refer to MANIFOLD, INTAKE, REMOVAL .
  2. Disconnect bank 2/2 variable lift solenoid wire harness connector.
    GC0144406Courtesy of CHRYSLER GROUP, LLC
  3. Remove the bolts (2) and remove the LH upper intake manifold support brackets (1).
    GC0147003Courtesy of CHRYSLER GROUP, LLC
  4. Remove the serpentine belt (7). Refer to BELT, SERPENTINE, REMOVAL .
    GC0147017Courtesy of CHRYSLER GROUP, LLC
  5. Remove the generator (2). Refer to GENERATOR, REMOVAL .
  6. Disconnect the ignition coil capacitor wire harness connector.
  7. Remove the spark plugs. Refer to SPARK PLUG, REMOVAL .
  8. Remove the and engine timing cover. Refer to COVER(S), ENGINE TIMING, REMOVAL .
  9. Remove the catalytic converter. Refer to CONVERTER, CATALYTIC, REMOVAL .
  10. Remove the electric vacuum pump. Refer to PUMP, ELECTRIC VACUUM, REMOVAL .
  11. Remove the support bracket bolts and the support bracket from both cylinder heads.
  12. Partially remove the EGR cooler. Refer to COOLER, EXHAUST GAS RECIRCULATION (EGR), REMOVAL .
    GC0144142Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

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

  13. Rotate the crankshaft CW to place the number one piston at TDC on the exhaust stroke by aligning the dimple (4) on the crankshaft with the block/bearing cap junction (5). The left side cam phaser arrows (2) should point toward each other and be parallel to the valve cover sealing surface (3). The right side cam phaser arrows (7) should point away from each other and the scribe lines (9) should be parallel to the valve cover sealing surface (8).
    CAUTION:

    Always reinstall timing chains so that they maintain the same direction of rotation. Inverting a previously run chain on a previously run sprocket will result in excessive wear to both the chain and sprocket.

  14. Mark the direction of rotation on the timing chain using a paint pen or equivalent to aid in reassembly.
    GC0144145Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    When the timing chains are removed and the cylinder heads are still installed, DO NOT rotate the camshafts or crankshaft without first locating the proper crankshaft position. Failure to do so will result in valve or piston damage.

  15. Reset the LH cam chain tensioner by lifting the pawl (1), pushing back the piston (2) and installing Tensioner Pin (3)

    (Special tool #8514A, Pins, Tensioner)

    Refer to RESETTING LEFT CAM CHAIN TENSIONER .

    GC0144164Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Minor rotation of a camshaft (a few degrees) may be required to install the camshaft phaser lock.

  16. Install the LH Camshaft Phaser Lock (4).

    (Special tool #10202, Locks, Camshaft/Phaser)

  17. Loosen both the intake oil control valve (6) and exhaust oil control valve (2).
  18. Remove the LH Camshaft Phaser Lock (4).

    (Special tool #10202, Locks, Camshaft/Phaser)

  19. Remove the oil control valve (2) from the left side exhaust cam phaser and pull the phaser off of the camshaft.
  20. Remove the oil control valve (6) from the left side intake cam phaser and pull the phaser off of the camshaft.
    GC0144140Courtesy of CHRYSLER GROUP, LLC
  21. Remove the LH cam chain tensioner arm (1).
  22. Remove two T30 bolts (6) and the LH cam chain tensioner (5).
  23. Remove two T30 bolts (4) and the LH cam chain guide (2).
  24. Remove the left camshafts. Refer to CAMSHAFT, ENGINE, REMOVAL .
    NOTE:

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

  25. Remove the rocker arms and lifters.
    Fig 1: Cylinder Head Retaining Bolts Loosening Sequence
    GC0144167Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    DO NOT use an impact gun or any type of power tools to break loose or remove the head bolts. This can cause the threads to pull out of the block with the bolts.

  26. Using the sequence shown, remove the cylinder head retaining bolts.
    GC0144308Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Right head gasket shown, left head gasket similar.

    WARNING:

    The multi-layered steel head gaskets have very sharp edges that could cause personal injury if not handled carefully.

    NOTE:

    The head gasket (1) crimps the locating dowels (2) and the dowels may pull out of the engine block when the head gasket is removed.

    CAUTION:

    Do not lay the cylinder head on its gasket sealing surface, due to the design of the cylinder head gasket, any distortion to the cylinder head sealing surface may prevent the gasket from properly sealing resulting in leaks.

  27. Remove the cylinder head and gasket (1). Discard the gasket.
  28. If required, remove the ignition coil capacitor.
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