Ram 1500, 2500, 3500, 2WD and 4WD, 2001-2005

Fuel Injectors

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Removal & Installation



3.7L, 4.7L & 5.7L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve fuel system pressure.
  4.  
  5. Remove fuel rail.
  6.  
  7. Disconnect clip(s) that retain fuel injector(s) to fuel rail.

    Click image to see an enlarged view

    Fig. Typical injector removal-pliers (1), injector clip (2), fuel injector (3) and fuel rail (4)

    Typical injector removal-pliers (1), injector clip (2), fuel injector (3) and fuel rail (4)
  8.  

To install:

  1. Install fuel injector(s) into fuel rail assembly and install retaining clip(s).
  2.  
  3. If same injector(s) is being reinstalled, install new O-ring(s).
  4.  
  5. Apply a small amount of clean engine oil to each injector O-ring. This will aid in installation.
  6.  
  7. Install fuel rail.
  8.  
  9. Start engine and check for fuel leaks.
  10.  

3.9L, 5.2L & 5.9L 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
     
    Throttle body
     
    A/C compressor bracket
     
    Fuel injector connectors
     
    Fuel line
     
    Fuel supply manifold with injectors
     
    Fuel injectors
     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel supply manifold with injectors. Tighten the bolts to 17 ft. lbs. (23 Nm).
     
    Fuel line
     
    Fuel injector connectors
     
    A/C compressor bracket
     
    Throttle body
     
    Air intake tube
     
    Negative battery cable
     

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

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Engine cover
     
    Negative battery cable
     
    Air intake tube
     
    Throttle body
     
    A/C compressor bracket
     
    Fuel injector connectors
     
    Fuel line
     
    Fuel supply manifold with injectors
     
    Fuel injectors
     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel supply manifold with injectors. Tighten the bolts to 17 ft. lbs. (23 Nm).
     
    Fuel line
     
    Fuel injector connectors
     
    A/C compressor bracket
     
    Throttle body
     
    Air intake tube
     
    Negative battery cable
     
    Engine cover
     

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

8.0L Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Air cleaner housing and tube
     
    Throttle body
     
    Ignition coil pack and bracket
     
    Upper intake manifold
     
    Fuel injector harness connectors
     
    Fuel line
     
    Fuel supply manifold with injectors attached
     
    Fuel injector retainer clips
     
    Fuel injectors
     

  6.  

To install:

  1. Install or connect the following:

    Fuel injectors with new O-ring seals
     
    Fuel injector retainer clips
     
    Fuel supply manifold. Tighten the bolts to 11 ft. lbs. (15 Nm).
     
    Fuel line
     
    Fuel injector harness connectors
     
    Upper intake manifold
     
    Ignition coil pack and bracket
     
    Throttle body
     
    Air cleaner housing and tube
     
    Negative battery cable
     

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

 
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