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Home >> Chevrolet >> 2007 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.8L (LDA) >> Repair Instructions >> Fuel Sender Assembly Replacement >> 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: Remove the rear compartment floor trim to provide technician contact with the vehicle's metal surfaces. Failure to remove the rear compartment floor trim may cause a static electricity discharge to ignite any fuel vapor resulting in personal injury and vehicle damage.
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.
  • Always maintain cleanliness when servicing fuel system components.
  • Do not bend the arm of the fuel gage float while removing the fuel sender assembly.
    Fig 1: View Of Fuel Sender Insulator Connector
    GM1670511Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel pump. Refer to Fuel Pump Replacement .
  2. Disconnect the fuel sender insulator connector.
    3. Fig 2: Identifying Terminal Wedge In Insulator
    GM1670512Courtesy of GENERAL MOTORS CORP.
  3. To disconnect the fuel pump terminal, push the terminal wedge (1) in the insulator.
    4. Fig 3: View Of Wire Removal Procedure
    GM1670514Courtesy of GENERAL MOTORS CORP.
  4. Push the wedge (1) outside, then pull the wires to disconnect from the connector.
    5. Fig 4: View Of Fuel Level Sensor And Sender Housing
    GM1670515Courtesy of GENERAL MOTORS CORP.
  5. Remove the fuel level sensor (1) from the sender housing, then remove the sender housing (2).
    6. Fig 5: View Of Fuel Sender Assembly
    GM1670518Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel sender assembly (1).
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