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Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (3.6L Engine (Service Information)) >> Manifolds >> Manifold, Intake >> Installation >> Lower

Manifold, Intake: Installation: Lower

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Fig 1: Lower Intake Manifold To Cylinder Head Seals
GC0144265Courtesy of CHRYSLER GROUP, LLC
  1. Clean and inspect the sealing surfaces. Install new lower intake manifold to cylinder head seals (1).
    Fig 2: Fuel Rail Bolt Tightening Sequence
    GC0144261Courtesy of CHRYSLER GROUP, LLC
  2. If removed, install the fuel injectors and the fuel rail (1) to the lower intake manifold. Tighten the four bolts in the sequence shown in illustration, to 7 N.m (62 in. lbs.). Refer to RAIL, FUEL, INSTALLATION .
    Fig 3: Intake Manifold Retaining Bolts Tightening Sequence
    GC0144188Courtesy of CHRYSLER GROUP, LLC
  3. Position the lower intake manifold (1) onto the cylinder head surfaces.
  4. Install the intake manifold retaining bolts and tighten in the sequence shown in illustration, to 8 N.m (71 in. lbs.).
    Fig 4: Injection/Ignition Harness Retainer & Main Wire Harness Retainer
    GC0144480Courtesy of CHRYSLER GROUP, LLC
  5. Fasten the main wire harness retainer (2) to the rear of the lower intake manifold.
  6. Fasten the injection/ignition harness retainer (1) to the rear of the lower intake manifold.
    Fig 5: Fuel Supply Hose & Fuel Injector Electrical Connectors
    GC0144479Courtesy of CHRYSLER GROUP, LLC
  7. Connect the fuel injector electrical connectors (2).
  8. Connect the fuel supply hose to the fuel rail (1). Refer to FITTING, QUICK CONNECT .
    Fig 6: Intake Ports, Insulator & Alignment Posts
    GC0144184Courtesy of CHRYSLER GROUP, LLC
  9. Install the insulator (2) to the two alignment posts (3) on top of the left cylinder head cover.
    Fig 7: Upper Intake Manifold Bolt Tightening Sequence
    GC0144185Courtesy of CHRYSLER GROUP, LLC
  10. Install the upper intake manifold (1) and support brackets. Refer to MANIFOLD, INTAKE, INSTALLATION .
    Fig 8: Inlet Air Temperature (IAT) Sensor Electrical Connector, Air Inlet Hose Assembly & Fasteners
    GC0144029Courtesy of CHRYSLER GROUP, LLC
  11. Position the air inlet hose assembly (5) onto the throttle body and the air cleaner housing.
  12. Secure the air inlet hose assembly retaining grommet onto the ball stud (4).
  13. Tighten the clamp at the air cleaner housing (3) to 5 N.m (44 in. lbs.).
  14. Tighten the clamp (2) at the throttle body to 5 N.m (44 in. lbs.).
  15. Connect the Inlet Air Temperature (IAT) sensor electrical connector (1).
    Fig 9: Engine Cover
    GC0144028Courtesy of CHRYSLER GROUP, LLC
  16. Position the engine cover (1) and secure the retaining grommets onto the ball studs.
    Fig 10: Negative Battery Cable
    GC0139402Courtesy of CHRYSLER GROUP, LLC
  17. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
  18. Start the engine and check for leaks.
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