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Home >> GMC >> 2004 >> Sierra 2500 HD, 2D Pickup, 6.6 2, RWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.6L (LLY) (Introduction) >> Repair Instructions >> Water-in-Fuel Sensor Replacement >> Installation Procedure

Installation Procedure

    Fig 1: View Of Water-In-Fuel Sensor From The Fuel Filter
    GM752028Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The water-in-fuel sensor must ONLY be tightened by hand.
  1. Install the water-in-fuel sensor (3) to the fuel filter (2).
    2. Fig 2: View Of Fuel Filter Assembly Connectors
    GM1334874Courtesy of GENERAL MOTORS CORP.
  2. Connect the fuel filter electrical connector.
  3. Install the right front wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  4. Prime the fuel system. Refer to Fuel System Priming .
  5. Start the engine. If the engine stalls, repeat the above step.
  6. Once the engine starts, inspect for fuel leaks.
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