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Home >> GMC >> 2005 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - 6.6L (Introduction)) >> Repair Instructions >> Water-in-Fuel Draining Procedure

Water-in-Fuel Draining Procedure

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    Fig 1: View Of Fuel Filter
    GM1334798Courtesy of GENERAL MOTORS CORP.
  1. Attach a small piece of hose to the drain cock onto the water-in-fuel sensor.
  2. Place an approved fuel-resistant container under the fuel filter.
    3. Fig 2: Water-In-Fuel Drain Cock
    GM1198929Courtesy of GENERAL MOTORS CORP.
  3. Open the drain cock 3 or 4 turns or until the water contaminated fuel seeps from the drain cock.
    4. Fig 3: Operating Priming Pump
    GM1198930Courtesy of GENERAL MOTORS CORP.
  4. Operate the priming pump until only diesel fuel is visible. Allow the pump to return upward between pushes.
  5. Tighten the drain cock.
  6. Remove the container and hose.
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