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Home › Pontiac › 2009 › G8 Base › Repair and Diagnosis › Engine Performance › System › Engine Control System & Fuel System - 3.6L - Introduction › Repair Instructions › Fuel Injector and Fuel Rail Replacement › Removal Procedure

Removal Procedure

    WARNING: Refer to Gasoline/Gasoline Vapors Warning .
    WARNING: Refer to Safety Glasses Warning .
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Remove the upper intake manifold with the lower intake manifold. Refer to Upper Intake Manifold Replacement .
    3. Fig 1: Identifying Quick Connect Fitting
    GM1949910Courtesy of GENERAL MOTORS CORP.
  3. Remove the fuel pipe retaining clip (1).
    4. Fig 2: Fuel & EVAP Lines
    GM1962313Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the fuel feed line pipe (2) from the fuel injector rail. Refer to Metal Collar Quick Connect Fitting Service .
    5. WARNING: Refer to Safety Glasses and Compressed Air Warning .
  5. Use compressed air in order to remove debris from the area where the fuel injectors enter the intake manifold.
    6. Fig 3: Identifying Fuel Rail To Lower Manifold Retaining Bolts
    GM1949808Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel rail to lower inlet manifold retaining bolts (1).
    7. CAUTION:
    • Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
    • Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.
  7. Remove the fuel rail (2) and the fuel injectors (3) from the manifold.
    8. Fig 4: Identifying Fuel Rail To Lower Manifold Retaining Bolts
    GM1949808Courtesy of GENERAL MOTORS CORP.
  8. Disengage the fuel injector electrical connector lock (1).
    9. Fig 5: Identifying Fuel Injector & Electrical Connector
    GM1949809Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the fuel injector electrical connector (1) from the fuel injector (2).
    10. Fig 6: Identifying Fuel Injector Retainer Clip & Fuel Rail
    GM1949810Courtesy of GENERAL MOTORS CORP.
  10. Remove the fuel injector retainer clip (1) from the fuel rail (2).
    11. Fig 7: Identifying Fuel Injector & Fuel Rail
    GM1949811Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel injector (1) from the fuel rail (2).
  12. Remove and discard the fuel injector seals.
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