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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (3.0L Turbo Diesel (Service Information)) >> Manifolds >> Manifold, Intake >> Installation

Manifold, Intake: Installation

WARNING: This page is about a different variant/trim than selected.
GC0158201Courtesy of CHRYSLER GROUP, LLC
  1. Clean the gasket sealing surfaces. Refer to ENGINE GASKET SURFACE PREPARATION .
  2. Install a NEW  intake manifold gasket (1, 3).
    GC0146714Courtesy of CHRYSLER GROUP, LLC
  3. Install the intake manifold and tighten bolts finger tight.
    Fig 1: Intake Manifold Tightening Sequence
    GC0158018Courtesy of CHRYSLER GROUP, LLC
  4. Using the tightening sequence shown in the illustration, tighten the bolts to 12 N.m (9 ft. lbs.).
    GC0146740Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Fuel tubes are a one time only use and must be replaced anytime they have been removed.

  5. Install the left side fuel rail. Refer to RAIL, FUEL, INSTALLATION .
  6. Attach the fuel injector return line to the top of intake manifold.
  7. Install the NEW  left high pressure fuel tube (11) and tighten the union nuts (10, 12) finger tight:
    • Tighten the union nut (10) to 5 N.m (44 in. lbs.) plus an additional 75 degrees turn.
    • Tighten the union nut (12) to 11 N.m (8 ft. lbs.) plus an additional 75 degrees turn.
    GC0146780Courtesy of CHRYSLER GROUP, LLC
  8. Install the fuel injection pump blocker shield. Tighten the bolts to 25 N.m (18 ft. lbs.).
  9. Position and properly route and install the engine wiring harness.
  10. Attach the vacuum brake booster tube to the top of intake manifold.
  11. Connect the EGR solenoid vacuum lines.
  12. Install the upper EGR tube. Refer to TUBE, EXHAUST GAS RECIRCULATION (EGR), INSTALLATION .
    GC0158007Courtesy of CHRYSLER GROUP, LLC
  13. Install the EGR air flow control valve (2). Refer to VALVE, EXHAUST GAS RECIRCULATION (EGR) AIRFLOW CONTROL, INSTALLATION .
    GC0158182Courtesy of CHRYSLER GROUP, LLC
  14. Be sure the O-ring seal (1) is seated on in the turbocharger outlet flange (2).
    GC0158084Courtesy of CHRYSLER GROUP, LLC
  15. Install the turbocharger outlet elbow (1). Tighten the bolts (2) to 10 N.m (89 in. lbs.).
    GC0157442Courtesy of CHRYSLER GROUP, LLC
  16. Connect the turbocharger outlet temperature sensor wire harness connector (1).
    GC0146745Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The crossover fuel line is a one time use only. The fuel line must be discarded and a new line must be installed.

  17. Install a NEW  fuel cross over tube (1) and tighten the union nuts to 5 N.m + 75° (44 in. lbs. + 75°).
  18. Install the fuel tube crossover tube clamp bolt (2) and tighten to 11 N.m (8 ft. lbs.).
    GC0146785Courtesy of CHRYSLER GROUP, LLC
  19. Install the wiring loom (2) onto the intake manifold. Tighten the ball stud (2) and the bolt (6) to 11 N.m (8 ft. lbs.).
    GC0146726Courtesy of CHRYSLER GROUP, LLC
  20. Tighten the Charge Air Cooler (CAC) mounting nut to 25 N.m (18 ft. lbs.).
  21. Install the CAC (2) from the turbocharger to the resonator.
  22. Install the CAC to the resonator.
  23. Install the resonator (3).

    Tighten the CAC mounting nut to 25 N.m (18 ft. lbs.).

    GC0146436Courtesy of CHRYSLER GROUP, LLC
  24. Install the engine cover (1).
  25. Connect the negative battery cable.
  26. Start the engine, allow to warm, turn the engine off and inspect for leaks.
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