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Home >> Chevrolet >> 2011 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure
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Removal Procedure

CAUTION: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.
NOTE: If the fuel injectors are found to be leaking, the engine oil may be contaminated with fuel.
    Fig 1: Fuel Injector & Components
    GM537311Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  2. Remove the fuel injector retaining clip (1).
  3. Remove the fuel injector (3) from the fuel rail.
  4. Remove the fuel injector upper O-ring (2).
  5. Remove the fuel injector lower O-ring (4).
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