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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - Introduction (2 Of 2) >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: Do not use the fuel injector O-ring seals again. Install NEW fuel injector O-ring seals during assembly.
    Fig 1: View Of Fuel Rail With Injectors
    GM1411907Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the NEW O-ring seals with clean engine oil.
  2. Install the NEW fuel injector O-ring seals (532, 534) onto the injector, as required.
  3. Install the fuel injector (533), as required
  4. Install the fuel injector retaining clip (521), as required.
  5. Install the fuel rail. Refer to Fuel Rail Assembly Replacement .
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