One problem related to fuel pump has been reported for the 2005 Chevrolet Avalanche. The most recently reported issues are listed below.
Vehicle would not start unless the key was turned to accessory position for a few seconds. This allowed the fuel filter to pump fuel to the engine. I have read of another individual having the same problem through the internet. I am concerned of other people having the same problem and needing to spend the money to have it fixed or not fixing it. I have had the vehicle checked and the fuel pump was replaced. Fortunately this did not happen while driving, but it seems to be a factory defect that should not have happened. The Chevrolet dealer kept the old part.