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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Engine Controls - 3.9L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel System Cleaning >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel tank module. Refer to Fuel Tank Module Replacement (Short Wheel Base)  or Fuel Tank Module Replacement (Long Wheel Base) .
  2. Inspect the fuel module strainer. Replace the module if the strainer is contaminated strainer and inspect the fuel pump.
  3. Inspect the fuel pump inlet for dirt and debris. Replace the module if you find dirt or debris in the fuel pump inlet.
    4. 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.
  4. Flush the fuel tank with hot water.
  5. Pour the water out of the fuel module 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.
  6. Install the fuel tank module. Refer to Fuel Tank Module Replacement (Short Wheel Base)  or Fuel Tank Module Replacement (Long Wheel Base) .
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