Avalanche, Express, Savana 2006-2007

Fuel Supply Pump

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Removal & Installation



  1. Disconnect the negative battery cable.
    NOTE
    Clean the fuel connections before disconnecting them to prevent fuel system contamination. Cap the lines to prevent leakage and contamination.

  2.  
  3. Relieve the fuel system pressure and open the fuel filler cap.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Detach the electrical connector from the pump.
  8.  
  9. Disconnect the fuel lines from the pump, then slide the pump out of its bracket.
  10.  

To install:

  1. Install the pump using new O-rings. Tighten the fittings to 22 ft. lbs. (30 Nm).
  2.  
  3. Engage the electrical connection and install the fuel filler cap.
  4.  
  5. Purge the fuel system of air. Start the vehicle and check for leaks.

    Click image to see an enlarged view

    Fig. Exploded view of the fuel pump assembly mounting-6.6L engines

  6.  

 
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