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Fuel Injector: Removal

  1. Disconnect negative cable from battery.
  2. Release fuel system pressure. Refer to STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE PROCEDURE .
  3. Disconnect fuel supply tube from rail. Refer to QUICK CONNECT FITTING .
  4. Disconnect electrical connectors from fuel injectors, refer to the fuel injector connector for electrical connector removal. See Fig 1.
    Fig 1: Fuel Rail and Injectors
    GC0019421Courtesy of DAIMLERCHRYSLER CORP.
    1 - FUEL SUPPLY LINE
    2 - FUEL LINE QUICK-CONNECTS
    3 - IGNITION COIL
    4 - FUEL RAIL
    5 - FUEL INJECTOR
  5. Remove fuel rail mounting screws.
  6. Lift rail off of intake manifold. Cover the fuel injector openings in the intake manifold.
  7. Remove fuel injector retainer. See Fig 2.
    Fig 2: Fuel Injector Retainer
    GC0019422Courtesy of DAIMLERCHRYSLER CORP.
    1 - RETAINER
    2 - FUEL RAIL
    3 - FUEL INJECTOR
  8. Pull injector out of fuel rail. Replace fuel injector O-rings. See Fig 3.
Fig 3: Fuel Injector O-Rings
GC0019423Courtesy of DAIMLERCHRYSLER CORP.
1 - FUEL INJECTOR
2 - NOZZLE
3 - TOP (FUEL ENTRY)
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