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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - 8.1L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Sender Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    CAUTION: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always replace the fuel sender gasket when reinstalling the fuel sender assembly.
    IMPORTANT: The fuel strainer must be in a horizontal position when installing the sending unit is installed in the tank. When installing the sending unit, assure that the fuel strainer does not block full travel of the float arm.
  1. Install a NEW sending unit seal.
  2. Install the sending unit.
    3. IMPORTANT: Always replace the fuel sender seal when installing the fuel sender assembly. Replace the lock ring if necessary. DO NOT apply any type of lubrication in the seal groove.
    Ensure the lock ring is installed with the correct side facing upward. A correctly installed lock ring will only turn in a clockwise direction.
  3. Use the J 45722  in order to install the fuel sender lock ring. Turn the fuel sender lock ring in a clockwise direction.
    4. Fig 1: Identifying Lock Ring
    GM1642096Courtesy of GENERAL MOTORS CORP.
  4. Connect the EVAP line to the sending unit. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  5. Connect the fuel line to the sending unit. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  6. Install the fuel tank. Refer to Fuel Tank Replacement (Pickup)  or Fuel Tank Replacement (Cab/Chassis - Front)  or Fuel Tank Replacement (Cab/Chassis - Rear) .
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