Liberty, Wrangler, 1997-2005

Fuel Injectors

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Removal & Installation



2.4L & 3.7 L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve fuel system pressure.
  4.  
  5. Negative battery cable
  6.  
  7. Fuel rail
  8.  
  9. Fuel injector retaining clips
  10.  
  11. Fuel injectors
  12.  



Click image to see an enlarged view

Fig. Fuel injector connector



Click image to see an enlarged view

Fig. Typical fuel injector mounting

To install:

  1. Fuel injectors, using new O-rings coated with a small amount of engine oil
  2.  
  3. Fuel injector clips to the fuel rail
  4.  
  5. Fuel rail
  6.  
  7. Negative battery cable
  8.  
  9. Start the vehicle and check for leaks, repair if necessary.
  10.  

2.4L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve fuel system pressure.
  4.  
  5. Negative battery cable
  6.  
  7. Fuel rail
  8.  
  9. Fuel injector retaining clips
  10.  
  11. Fuel injectors
  12.  



Click image to see an enlarged view

Fig. Fuel injector connector



Click image to see an enlarged view

Fig. Typical fuel injector mounting

To install:

  1. Fuel injectors, using new O-rings coated with a small amount of engine oil
  2.  
  3. Fuel injector clips to the fuel rail
  4.  
  5. Fuel rail
  6.  
  7. Negative battery cable
  8.  
  9. Start the vehicle and check for leaks, repair if necessary.
  10.  

2.5L And 4.0L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Relieve fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Air intake tube
     
    Fuel injector connectors
     
    Fuel line
     
    Accelerator cable
     
    Cruise control cable, if equipped
     
    Transmission cable, if equipped
     
    Cable routing bracket
     
    Fuel supply manifold with injectors attached
     
    Fuel injectors

    Click image to see an enlarged view

    Fig. Fuel injector mounting points on the 4.0L engine

     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors, using new O-rings
     
    Fuel supply manifold with injectors. Tighten the bolts to 75-125 inch lbs. (8-14 Nm).
     
    Cable routing bracket
     
    Transmission cable, if equipped
     
    Cruise control cable, if equipped
     
    Accelerator cable
     
    Fuel line
     
    Fuel injector connectors
     
    Air intake tube
     
    Negative battery cable
     

  2.  
  3. Start the engine and check for leaks.
  4.  

 
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