LEMON Manuals: Even more car manuals for everyone: 1960-2025
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 >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

    Fig 1: Fuel Injector Assembly & Number Identification
    GM537308Courtesy of GENERAL MOTORS CORP.
    NOTE: Be sure to use the correct part number when ordering replacement fuel injectors.
  1. The fuel injector assembly (1) is stamped with a part number identification (2).
    2. Fig 2: Fuel Injector & Components
    GM537311Courtesy of GENERAL MOTORS CORP.
  2. Lubricate the new injector O-rings (2, 4) with clean engine oil.
  3. Install the fuel injector upper O-ring (2).
  4. Install the fuel injector lower O-ring (4).
  5. Install the fuel injector (3) to the fuel rail.
  6. Install the fuel injector retaining clip (1).
  7. Install the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .
scientia non olet · About LEMON Manuals