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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 973 (Engine Controls - 4.8L, 5.3L, & 6.0L (Introduction)) >> Repair Instructions >> Fuel Sender Assembly Replacement (5.3L (L59) Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel tank. Refer to Fuel Tank Replacement (Pickup)  or Fuel Tank Replacement (Pickup - 5.3L (L59) Engine)  or Fuel Tank Replacement (1500 Crew Cab)  or Fuel Tank Replacement (Cab/Chassis - Front)  or Fuel Tank Replacement (Cab/Chassis - Rear) .
  2. Disconnect fuel lines from the sending unit, if required. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  3. Using J 44402  , remove the sending unit lock ring.
    4. Fig 1: Removing/Installing Sending Unit Lock Ring (5.3L (L59))
    GM871947Courtesy of GENERAL MOTORS CORP.
  4. Remove the sending unit and seal. Discard the seal.
    CAUTION: Drain the fuel from the fuel sender assembly into an approved container in order to reduce the risk of fire and personal injury. Never store the fuel in an open container.
    5. Fig 2: Fuel Sender Assembly (5.3L (L59))
    GM871951Courtesy of GENERAL MOTORS CORP.
  5. Clean the sending unit sealing surfaces.
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