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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System & Fuel System - 6.6L (LLY) - Introduction (2 Of 2)) >> Repair Instructions >> Water-in-Fuel Draining

Water-in-Fuel Draining

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  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Attach a small piece of hose to the drain cock onto the water-in-fuel sensor.
  3. Place an approved fuel-resistant container under the fuel filter.
    4. Fig 1: Identifying Drain Cock
    GM1663157Courtesy of GENERAL MOTORS CORP.
  4. Open the drain cock 3 or 4 turns or until the water contaminated fuel seeps from the drain cock.
  5. Prime the fuel system until only diesel fuel is visible. Refer to Fuel System Priming .
  6. Tighten the drain cock.
  7. Remove the container and hose.
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