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Fuel Rail - 4.0L Engine: Removal

The fuel damper is not serviced separately.

WARNING: THE FUEL SYSTEM IS UNDER CONSTANT FUEL PRESSURE EVEN WITH ENGINE OFF. THIS PRESSURE MUST BE RELEASED BEFORE SERVICING FUEL RAIL.
  1. Remove fuel tank filler tube cap.
  2. Perform STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE  Procedure.
  3. Disconnect negative battery cable from battery.
  4. Remove air tube at top of throttle body. Note: Some engine/vehicles may require removal of air cleaner ducts at throttle body.
  5. Disconnect electrical connectors at all 6 fuel injectors. Push red colored slider away from injector (1). While pushing slider, depress tab (2) and remove connector (3) from injector. The factory fuel injection wiring harness is numerically tagged (INJ 1, INJ 2, etc.) for injector position identification. If harness is not tagged, note wiring location before removal.
    Fig 1: Removing & Installing Fuel Injector Connector
    G01740936Courtesy of DAIMLERCHRYSLER CORP.
  6. Disconnect fuel supply line latch clip and fuel line at fuel rail. See QUICK CONNECT FITTING .
  7. Disconnect throttle cable at throttle body. See THROTTLE CONTROL CABLE .
  8. Disconnect speed control cable at throttle body (if equipped). See SPEED CONTROL SYSTEM article.
  9. Disconnect automatic transmission cable at throttle body (if equipped).
  10. Remove cable routing bracket at intake manifold.
  11. If equipped, remove wiring harnesses at injection rail studs by removing nuts.
  12. Clean dirt/debris from each fuel injector at intake manifold.
  13. Remove fuel rail mounting nuts/bolts.
    Fig 2: Removing & Installing Fuel Rail - 4.0L
    G01740937Courtesy of DAIMLERCHRYSLER CORP.
  14. Remove fuel rail by gently rocking until all the fuel injectors are out of intake manifold.