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Home >> Buick >> 2005 >> Allure CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.8L - Introduction (2 Of 2) >> Repair Instructions >> Fuel Rail Assembly Replacement >> Removal Procedure
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Removal Procedure

NOTE: Refer to Fuel Rail Notice in Cautions and Notices.
NOTE: Refer to Cover and Plug Openings Notice in Cautions and Notices.
IMPORTANT: When servicing the fuel rail assembly, take precautions to prevent dirt and other contaminants from entering the fuel passages. Cap the fittings and plug the holes during servicing.
IMPORTANT: Always maintain cleanliness when servicing fuel system components.
    Fig 1: Female Connector & Fuel Rail Pipe
    GM910914Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel pressure from the fuel system. Refer to Fuel Pressure Relief Procedure .
  2. Clean the fuel rail assembly and the fuel feed pipe.
  3. Disconnect the fuel feed pipe (1) from the fuel rail. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  4. Remove the spark plug wires from the fuel rail.
  5. Disconnect and reposition the spark plug wires from the ignition control module.
  6. Fig 2: View Of Fuel Injector Electrical Connectors
    GM198402Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the fuel injector electrical connectors.
  8. Fig 3: Fuel Rail Assembly & Fuel Injectors
    GM910936Courtesy of GENERAL MOTORS CORP.
  9. Remove the fuel rail hold-down nuts (2).
  10. Remove the fuel rail (1) with the fuel injectors (3) with equal force on both sides of the fuel rail.