GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L (LLY) 🢒 Water-in-Fuel Draining

    Object Number: 1334798 Size: SH
  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. Object Number: 1198929 Size: SH
  3. Open the drain cock 3 or 4 turns or until the water contaminated fuel seeps from the drain cock.

    4. Object Number: 1198930 Size: SH
  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.