LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (3.2L Engine (Service Information)) >> Manifolds >> Manifold, Intake >> Installation >> Upper Intake Manifold

Upper Intake Manifold

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:

Prior to installing the upper intake manifold, verify that the four fuel rail bolts were not loosened. Refer to RAIL, FUEL, INSTALLATION .

GC0144184Courtesy of CHRYSLER GROUP, LLC
  1. Clean and inspect the sealing surfaces. Install new upper to lower intake manifold seals (1).
    NOTE:

    Make sure the fuel injectors and wiring harnesses are in the correct position so that they don't interfere with the upper intake manifold installation.

  2. If removed, install the insulator (2) to the two alignment posts (3) on top of the LH cylinder head cover.
    GC0144354Courtesy of CHRYSLER GROUP, LLC
  3. Lift and hold the seven upper intake attaching bolts (1) clear of the mating surface. Back the bolts out slightly or if required, use an elastic band to hold the bolts clear of the mating surface.
  4. Position the upper intake manifold (1) onto the lower intake manifold so that the two locating posts (2) on the upper intake manifold align with corresponding holes (3) in the lower intake manifold.
    Fig 1: Upper Intake Manifold Bolt Tightening Sequence
    GC0144185Courtesy of CHRYSLER GROUP, LLC
  5. Install the upper intake manifold attaching bolts. Tighten the bolts in the sequence shown in illustration to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
    GC0147011Courtesy of CHRYSLER GROUP, LLC
  6. Position the support bracket (5) to the intake manifold studs.
  7. Install the two nuts (1) to the upper intake manifold support bracket. Tighten the nuts (1) to the proper specifications and tighten the studbolt (2) to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
  8. Install the wire harness retainer (3) to the studbolt (2).
  9. Install the wire harness retainer (4) to the upper intake manifold support bracket (5).
    GC0144182Courtesy of CHRYSLER GROUP, LLC
  10. Install the two upper intake manifold support brackets nuts (1). Tighten the nuts to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
    GC0147010Courtesy of CHRYSLER GROUP, LLC
  11. Connect the following hoses to the upper intake manifold:
    • Positive Crankcase Ventilation (PCV) (3)
    • vapor purge (6)
    • brake booster (2)
  12. Connect the electrical connectors to the Manifold Absolute Pressure (MAP) sensor (1) and the Electronic Throttle Control (ETC) (7).
  13. Secure the ETC harness to the clip (7) on the throttle body and engage the wire harness retainers (4 and 5) to the upper intake manifold near the MAP sensor.
  14. Install the intake resonator. Refer to RESONATOR, AIR CLEANER, INSTALLATION .
    GC0159742Courtesy of CHRYSLER GROUP, LLC
  15. Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
  16. Install the engine cover (1).
scientia non olet · About LEMON Manuals