LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2005 >> CTS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.7L - Introduction >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal Procedure

    Fig 1: Fuel Rail Assembly & Bolts
    GM222050Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
    2. IMPORTANT: Leaking fuel injectors may contaminate the engine oil with fuel.
  2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure .
  3. Remove the fuel rail assembly. Refer to Fuel Rail Assembly Replacement .
    4. Fig 2: View Of Fuel Injector
    GM217114Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
  4. Spread the injector retainer clip to release the injector from the fuel rail.
  5. Remove the fuel injector.
  6. Remove the injector O-ring seals from both ends of the injector.
scientia non olet · About LEMON Manuals