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Home >> Hummer >> 2009 >> H3T Alpha >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - Introduction >> 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: The engine oil may be contaminated with fuel if the fuel injectors are leaking.
    Fig 1: Identifying Fuel Rail & Components
    GM1485990Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  2. Remove and discard the fuel injector retainer clip (4).
  3. Remove the fuel injector (2).
  4. Remove and discard the fuel injector O-ring seals (1 and 3).
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