S&T Series Blazer, Bravada, Envoy, Jimmy, Rainier, Trailblazer, Xtreme

Fuel Pump

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Properly relieve the fuel system pressure.
  4.  
  5. Drain the fuel tank.
  6.  
  7. Support the fuel tank.
  8.  
  9. Remove or disconnect the following:

    Negative battery cable
     
    Filler neck from the tank
     
    Shield from tank and tank straps
     
    Fuel lines and vapor hose from pump
     
    Electrical connection from fuel pump
     
    Fuel tank
     
    Fuel pump/sending unit assembly by turning the locking ring (located on top of the fuel tank) counterclockwise using a spanner wrench
     
    Fuel pump from the fuel lever sending device

    Click image to see an enlarged view

    Fig. View of the in-tank fuel pump assembly

     

  10.  

To install:

  1. Install or connect the following:
    NOTE
    The fuel pump strainer must be in a horizontal position when the fuel sender is installed in the tank. When installing the sender assembly, make sure that the fuel pump strainer does not block full travel of the float arm.



    Fuel pump in tank with new seal around opening
     



    Tank and connect fuel lines and vapor hose
     
    Tank to the frame. Torque the fasteners to 33 ft. lbs. (45 Nm).
     
    Shield
     
    Fuel filler neck and clamp
     
    Negative battery cable
     

  2.  
  3. Refill the tank.
  4.  
  5. Run the engine and check for leaks.
  6.  

 
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