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Intake Manifold - Lower: Installation

  1. Clean and inspect sealing surfaces of cylinder head and manifold. Gaskets can be reused provided they are free of cuts or tears.
  2. Position manifold on cylinder head surfaces.
    NOTE: For ease of installing upper intake manifold, install a bolt 2 - 3 turns to the rearmost attaching hole of intake. This will properly position lower manifold.
  3. Install fuel rail with injectors.
  4. Install manifold attaching bolts and tighten in sequence shown in (Fig 1) to 12 N.m (105 in. lbs.). Remove bolt used for aligning manifold.
    Fig 1: Tightening Lower Intake Manifold Bolts In Sequence
    G02709642Courtesy of DAIMLERCHRYSLER CORP.
  5. Connect the fuel injector electrical connectors.
    NOTE: Make sure fuel injectors are located in the correct location and position, as upper intake manifold interference could occur.
  6. Install screw attaching fuel rail support bracket to the throttle body support bracket.
  7. Connect fuel supply hose to fuel rail.
  8. Install upper intake manifold. (Refer to INSTALLATION ).
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