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Home >> Cadillac >> 1999 >> Eldorado Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System Removal, Installation & Overhaul >> Fuel System >> Fuel Sender Assembly Replacement (PRIZM) >> Removal Procedure
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Removal Procedure

CAUTION: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
CAUTION: Provide proper ventilation when working with fuel in enclosed areas where fuel vapors can collect. The lack of adequate ventilation may result in personal injury.
CAUTION: Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.
CAUTION: Fuel Vapors can collect while servicing fuel system parts in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors:
  • Use forced air ventilation such as a fan set outside of the trunk.
  • Plug or cap any fuel system openings in order to reduce fuel vapor formation.
  • Clean up any spilled fuel immediately.
  • Avoid sparks and any source of ignition.
  • Use signs to alert others in the work area that fuel system work is in process.
NOTE: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.
NOTE: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
  • The fuel pipe connections
  • The hose connections
  • The areas surrounding the connections
IMPORTANT: Always replace the fuel sender assembly O-rings when reinstalling the fuel sender assembly.
IMPORTANT: Always maintain cleanliness when servicing fuel system components.
IMPORTANT: Do not bend the arm of the fuel gauge float while removing the fuel sender assembly.
  1. Relieve the fuel system fuel pressure. Refer to FUEL PRESSURE RELIEF .
    2. Fig 1: Identifying Fuel Sender Assembly Access Panel
    GM304402
  2. Remove the rear seat bottom cushion.
  3. Remove the left side door opening sill plate.
  4. Fold back the carpet in order to maintain metal-to-metal contact while servicing the fuel sender assembly.
  5. Remove the fuel sender assembly access panel (1) from the rear seat floor (the panel is held in place by a butyl caulk seal).
    6. Fig 2: Identifying Fuel Sender Assembly Electrical Connector
    GM237551
  6. Disconnect the fuel sender assembly electrical connector (1).
    7. Fig 3: Locating Fuel Line Fitting Retaining Clip
    GM237553
  7. Remove the fuel line fitting retaining clip (1).
  8. Remove the fuel line (2) from the fuel sender assembly.
    9. Fig 4: Identifying Fuel Sender Assembly Components
    GM237554
  9. Remove the eight fuel sender assembly hold down bolts (2).
  10. Remove the fuel sender assembly hold down plate (1).
  11. Clean the fuel pipe and fuel sender assembly to prevent possible fuel contamination during removal.
    12. Fig 5: View Of Fuel Sender Assembly
    GM237555
  12. Remove the fuel sender assembly (1) from the fuel tank (3).
  13. Clean the fuel sender assembly O-ring sealing surfaces.
  14. Inspect the fuel sender assembly O-ring sealing surfaces.
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