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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Engine Controls 3.8L (Introduction, Service & Replacement)) >> Repair Instructions >> Fuel Rail Assembly Replacement (L36) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
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: View Of Fuel Feed & Fuel Return Pipes (L36)
    GM32409Courtesy 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 connections.
  3. Disconnect the fuel feed (1) and the fuel return pipes (2) from the fuel rail. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  4. Fig 2: View Of Vacuum Line At Pressure Regulator
    GM155470Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the vacuum line from the fuel pressure regulator.
  6. Remove the ignition coil wires.
  7. Fig 3: View Of Fuel Injector Electrical Connectors
    GM198402Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the fuel injector electrical connectors.
  9. Fig 4: Fuel Rail Exploded View
    GM537319Courtesy of GENERAL MOTORS CORP.
  10. Remove the fuel rail hold-down bolts.
  11. Remove the fuel rail with equal force on both sides of the fuel rail.