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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> 2.0L - Fuel System >> Fuel Delivery >> Rail, Fuel >> Removal And Installation >> Removal And Installation

Removal And Installation

REMOVAL 

NOTE:

If the fuel rail or the injectors are replaced, connect the diagnostic scan tool to the vehicle, go to Powertrain Control Module (PCM) in the "Miscellaneous functions" menu and start the following procedures: fuel feed system component replacement; adaptive parameter reset.

  1. Disconnect and isolate the negative battery cable.
  2. Remove and discard the high pressure fuel pipe. Refer to LINES, FUEL, REMOVAL AND INSTALLATION .
    GC0193860Courtesy of CHRYSLER GROUP, LLC
  3. Disconnect the wire harness connections (1) from the fuel injectors.
    GC0193992Courtesy of CHRYSLER GROUP, LLC
  4. Remove the bolts (1a) securing the fuel rail (1b) to the cylinder head.
    GC0181014Courtesy of CHRYSLER GROUP, LLC
  5. Using the (special tool #2044500140, Remover, Fuel Rail), remove the fuel rail (1a) and injectors (1b).
    GC0180968Courtesy of CHRYSLER GROUP, LLC
  6. If required, remove the fuel pressure sensor (1).
    GC0181012Courtesy of CHRYSLER GROUP, LLC
  7. Remove the injector fastening pin retaining clips (1).
    GC0181002Courtesy of CHRYSLER GROUP, LLC
  8. Remove the injector (1b) fastening pins (1a).
    GC0180965Courtesy of CHRYSLER GROUP, LLC
  9. Remove the fuel injector (1a) from the fuel rail (1b).
    NOTE:

    The O-rings (a) and injector seal (b) must be replaced once they have been removed. The O-rings and injector seals should never be reused.

    GC0181006Courtesy of CHRYSLER GROUP, LLC
  10. Remove the O-rings (1) from the injectors.
    GC0180998Courtesy of CHRYSLER GROUP, LLC
  11. With the (special tool #2025505140, Pliers, Injector Seal Removal) (1a) partially remove the injector seal (1b).
    GC0181010Courtesy of CHRYSLER GROUP, LLC
  12. Finish removing the injector seal using the (special tool #2025504140, Pick, Injector Seal 90 Degree) (1a) and the (special tool #2025506140, Pliers, Injector Seal Side Cutter) (1b).
  13. Repeat for all of the other injectors.

INSTALLATION 

GC0180981Courtesy of CHRYSLER GROUP, LLC
  1. Lubricate the threads of the fuel rail pressure sensor (1) with a medium hydraulic oil Mobil DTE-25 or equivalent.
  2. Install the engine fuel pressure sensor and tighten it the proper specification. Refer to TORQUE SPECIFICATIONS  .
  3. Install the NEW  O-rings on each injector.
  4. Install the NEW  injector seals on each injector, using the (special tool #2025500140, Kit, Fuel Injector) as described below.
    GC0181008Courtesy of CHRYSLER GROUP, LLC
  5. Insert the injector seal (1a) on the (special tool #2025501141, Cone, Injector Seal Installer 70mm) (1b) mounted on the injector (1c).
  6. Using the (special tool #2025502140, Installer, Injector Seal to Cone) (2a), slide the injector seal into the recess on the fuel injector (2b).
    GC0180989Courtesy of CHRYSLER GROUP, LLC
  7. Check that the injector seal is correctly fitted onto the injector (1a) with the (special tool #2025503140, Tool, Injector Seal Calibration) (1b). The tool has to install and remove freely without catching on the injector seal edge.
  8. Lightly lubricate new O-ring seals with engine oil, install the injectors in the fuel rail, insert the fastening pins and engage the respective retaining clips.
    GC0194827Courtesy of CHRYSLER GROUP, LLC
  9. Install and hand tighten the (special tool #2044400140, Guide, Fuel Rail Installer) (1) onto the cylinder head.
  10. Lightly lubricate new O-ring seals with engine oil, using the fuel rail guides, install the fuel rail (2) and injectors.
    GC0193692Courtesy of CHRYSLER GROUP, LLC
  11. Tighten the bolts (1a) securing the fuel rail (1b) to the cylinder head, to the proper specification. Refer to TORQUE SPECIFICATIONS  .
  12. Connect the wire harness connections to the injectors and engage the wiring.
  13. Install the NEW  high pressure fuel pipe. Refer to LINES, FUEL, REMOVAL AND INSTALLATION .
  14. Connect the negative battery cable.
  15. Check the high pressure fuel system for leaks. Refer to DIAGNOSIS AND TESTING  .