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Home >> Buick >> 2011 >> Lucerne Super >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 4.6L - Repair Instructions >> Repair Instructions >> Fuel System Cleaning
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Fuel System Cleaning

IMPORTANT:

Only use oil free compressed air to blow out fuel pipes.

  1. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  2. Inspect the fuel sender strainer. Replace the fuel sender assembly if the fuel strainer is contaminated.
    3. IMPORTANT:

    When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water in accordance with all applicable local, state, and federal laws and regulations.

  3. Flush the fuel tank with hot water.
  4. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete.
  5. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
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