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Home >> Jeep >> 2015 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Fuel Delivery, Gas >> Rail, Fuel >> Installation >> Installation

Rail, Fuel: Installation: Installation

Fig 1: O-Ring Seals & Fuel Injector
GC0144264Courtesy of CHRYSLER GROUP, LLC
  1. If removed, install the six fuel injectors to the fuel rail with new O-ring seals. Refer to INJECTOR(S), FUEL, INSTALLATION  .
    Fig 2: Identifying Fuel Rail Bolt Tightening Sequence
    GC0147420Courtesy of CHRYSLER GROUP, LLC
  2. Clean out the fuel injector bores in the lower intake manifold.
  3. Apply a small amount of engine oil to each fuel injector O-ring. This will help in fuel rail installation.
  4. Install the fuel rail (1) to the lower intake manifold with four bolts tightened in the sequence shown to 7 N.m (62 in. lbs.).
    Fig 3: Fuel Supply Line And Connectors
    GC0147423Courtesy of CHRYSLER GROUP, LLC
  5. Connect the fuel injector electrical connectors (1).
  6. Connect the fuel supply hose to the fuel rail (2). Refer to STANDARD PROCEDURE  .
    Fig 4: Intake Ports, Insulator & Alignment Posts
    GC0144184Courtesy of CHRYSLER GROUP, LLC
  7. Install the insulator (2) to the two alignment posts (3) on top of the LH cylinder head cover.
    Fig 5: Upper Intake Manifold Tightening Sequence
    GC0154022Courtesy of CHRYSLER GROUP, LLC
  8. Install the upper intake manifold (1), support brackets and air cleaner body. Refer to MANIFOLD, INTAKE, INSTALLATION .
  9. Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
  10. Start the engine and check for leaks.