2005 Chrysler 300 BaseFACTORY OEM SERVICE PROCEDURE

Fuel Injection: Injector-Fuel: Removal: 2.7L

WARNING: THE FUEL SYSTEM IS UNDER CONSTANT PRESSURE EVEN WITH ENGINE OFF. BEFORE SERVICING FUEL INJECTOR(S), FUEL SYSTEM PRESSURE MUST BE RELEASED.

To remove one or more fuel injectors, the fuel rail assembly must be removed from engine.

  1. Release fuel system pressure. Refer to Fuel System Pressure Release Procedure .
  2. Disconnect negative cable to battery.
  3. Remove intake manifold plenum, (Refer to appropriate ENGINE article).
  4. Lift Plenum up off of engine. Cover intake manifold to prevent foreign material from entering engine.
  5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold, (Refer to FUEL SYSTEM/FUEL DELIVERY/QUICK CONNECT FITTING - STANDARD PROCEDURE) .
    Fig 1: INJECTOR AND CONNECTOR LOCATION
    GC0013119Courtesy of DAIMLERCHRYSLER CORP.
  6. If the injector connectors are not tagged with their cylinder number, tag them to identify the correct cylinder
  7. Remove electrical connectors from the fuel injectors.
  8. Remove fuel rail (1) mounting bolts.
  9. Lift fuel rail straight up off of the cylinder head.
  10. Remove retaining clips from fuel injectors (2) at fuel rail.
  11. Remove fuel injectors (2).
  12. Repeat for remaining injectors.
  13. Check injector O-ring for damage. If O-ring is damaged, it must be replaced. Replace the injector clip if it is damaged.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.