Ram Truck 1500, 2500 & 3500 (2006-2008)

Injection Pump

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Removal & Installation



5.9L & 6.7L Engines
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cables
     
    Intake air tube
     
    Drive belt
     
    Pump wiring harness
     
    Injection pump supply line
     
    Fuel lines
     
    Drive gear access cover
     
    Drive gear mounting nut
     

  4.  
  5. Using a gear puller, remove the drive gear and leave it hanging within the timing gear cover.
  6.  
  7. Remove 3 pump mounting nuts and remove the pump.

    Click image to see an enlarged view

    Fig. Exploded view of diesel injection pump 5.9L-6.7L engines

  8.  

To install:

  1. Install a new O-ring coated with clean engine oil into the machined groove at the pump mounting area.
  2.  
  3. Install the pump to the mounting flange on the gear housing while aligning the pump shaft through the back of the pump gear.
  4.  
  5. Install the 3 pump mounting nuts and finger-tighten.
  6.  
  7. Install the shaft washer and nut and tighten by hand.
  8.  
  9. Tighten the pump mounting nuts to 18 ft. lbs. (25 Nm).
  10.  
  11. Tighten the pump shaft nut to 77 ft. lbs. (105 Nm).
  12.  
  13. Install the drive gear cover and tighten to 71 INCH lbs. (8 Nm).
  14.  
  15. Install or connect the following:

    Fuel lines
     
    Injection pump supply line
     
    Pump wiring harness
     
    Drive belt
     
    Intake air tube
     
    Negative battery cables
     

  16.  
  17. Bleed air from the system.
  18.  
  19. Start the engine and check for leaks.
  20.  

 
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