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Home >> Chevrolet >> 2003 >> Avalanche 2500, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 8.1L >> Fuel Systems >> Fuel System Cleaning >> Cleaning Procedures
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Cleaning Procedures

  1. Remove the fuel sending unit.
  2. Inspect fuel strainer. Replace sending unit if the strainer is contaminated.
  3. Inspect fuel pump inlet for dirt and debris. Replace sending unit if dirt or debris is found in fuel pump inlet.
  4. Flush fuel tank with hot water.
  5. Pour the water out of the sending unit opening. Rock the tank to be sure that removal of the water from the tank is complete.
  6. Install the fuel sending unit.
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