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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.6L Engine (Service Information) >> Cylinder Head >> Cover(S), Cylinder Head >> Removal >> Right

Cover(S), Cylinder Head: Removal: Right

Fig 1: Magnetic Timing Wheels
GC0144162Courtesy of CHRYSLER GROUP, LLC
CAUTION:

The magnetic timing wheels (1) 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.

Fig 2: Upper Intake Manifold & Fasteners
GC0154013Courtesy of CHRYSLER GROUP, LLC
  1. Disconnect and isolate the negative battery cable.
  2. Remove the air cleaner body and upper intake manifold (2). Refer to MANIFOLD, INTAKE, REMOVAL .
    Fig 3: Intake Ports, Insulator & Alignment Posts
    GC0144184Courtesy of CHRYSLER GROUP, LLC
  3. Cover the open intake ports (1) to prevent debris from entering the engine.
    Fig 4: Generator Stud, Connector, Retainers & Right Exhaust And Right Intake Variable Valve Timing Solenoid Electrical Connectors
    GC0154028Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Mark the variable valve timing solenoid connectors (5 and 6) with a paint pen or equivalent so that they may be reinstalled in their original locations.

  4. Disconnect the right exhaust variable valve timing solenoid electrical connector (5).
  5. Disconnect the right intake variable valve timing solenoid electrical connector (6).
  6. Disengage the wire harness retainers (1 and 4) from the right cylinder head cover.
    Fig 5: Variable Valve Timing Solenoids, Connectors & Bolts
    GC0144211Courtesy of CHRYSLER GROUP, LLC
  7. Mark the variable valve timing solenoids (2 and 4) with a paint pen or equivalent so that they may be reinstalled in their original locations.
  8. Remove the variable valve timing solenoids
    Fig 6: Engine Injection/Ignition Harness, Ignition Coil Electrical Connectors, Retainers, Camshaft Position (CMP) Sensor Connector & Fuel Injector Electrical Connectors
    GC0154029Courtesy of CHRYSLER GROUP, LLC
  9. Disconnect three ignition coil electrical connectors (2).
  10. Disconnect the electrical connector (4) from the right Camshaft Position (CMP) sensor.
  11. Disengage three main wire harness retainers (3) from the right cylinder head cover.
    Fig 7: CMP Sensor & Bolt
    GC0144205Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    If removing both RH and LH CMP sensors, mark the sensors so they can be installed in their original locations.

  12. Remove the camshaft position sensor. Refer to SENSOR, CAMSHAFT POSITION, 3.6L, REMOVAL .
    Fig 8: Electrical Connector, Ignition Coils & Ignition Coil Retaining Bolts
    GC0144206Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The LH ignition coils are shown in illustration, the RH ignition coils are similar.

  13. Remove the ignition coils (2). Refer to COIL, IGNITION, REMOVAL .
    Fig 9: Ground Strap, Bolt, Retainers & Crankshaft Position (CKP) Sensor
    GC0154032Courtesy of CHRYSLER GROUP, LLC
  14. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  15. Disengage the main wire harness retainer (3) from the oil level indicator.
    Fig 10: Transmission Fluid Level Indicator Tube & Bolt
    GC0144412Courtesy of CHRYSLER GROUP, LLC
  16. Loosen the bolt (1) securing the transmission fluid level indicator tube (2) to the transmission housing.
    Fig 11: Upper Transmission-To-Engine Bolt & Transmission Oil Level Indicator Tube
    GC0144468Courtesy of CHRYSLER GROUP, LLC
  17. Remove the upper transmission to engine bolt (1) and reposition the transmission oil level indicator tube (2).
    Fig 12: Oil Level Indicator & Bolt
    GC0154005Courtesy of CHRYSLER GROUP, LLC
  18. Lower the vehicle.
  19. Remove the bolt (2) and the oil level indicator (1).
    Fig 13: PCV Valve & Screws
    GC0154047Courtesy of CHRYSLER GROUP, LLC
  20. Remove the PCV valve (1). Refer to VALVE, POSITIVE CRANKCASE VENTILATION (PCV), REMOVAL .
    Fig 14: Cylinder Head Cover Mounting Bolts & Studbolts
    GC0144197Courtesy of CHRYSLER GROUP, LLC
  21. Loosen nine cylinder head cover mounting bolts (1) and three studbolts (2) and remove the cylinder head cover.
    Fig 15: Cylinder Head Cover Gasket & Spark Plug Tube Seals
    GC0144274Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The LH cylinder head cover is shown in illustration, the RH cylinder head cover is similar.

  22. Remove and discard the cylinder head cover gasket (1).
  23. The spark plug tube seals (2) can be reused if not damaged.
    Fig 16: Residual Sealant
    GC0144275Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The LH cylinder head cover T-joints are shown in illustration, the RH cylinder head cover T-joints are similar.

    CAUTION:

    Do not use oil based liquids, wire brushes, abrasive wheels or metal scrapers to clean the engine gasket surfaces. Use only isopropyl (rubbing) alcohol, along with plastic or wooden scrapers. Improper gasket surface preparation may result in engine fluid leakage.

  24. Remove all residual sealant (1) from the cylinder head, timing chain cover and cylinder head cover mating surfaces. Refer to ENGINE GASKET SURFACE PREPARATION  .