LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2017 >> SS Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.2L (LS3) - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

    Fig 1: Fuel Injector O-Ring Seals
    GM1954075Courtesy of GENERAL MOTORS COMPANY
  1. Lubricate the NEW fuel injector seals (2) with clean engine oil.
  2. Install the NEW fuel injector seals (2) to the fuel injectors (1).
  3. Fig 2: Fuel Rail Components
    GM2291242Courtesy of GENERAL MOTORS COMPANY
  4. Install the fuel rail assembly (3) to the intake manifold.
  5. Apply a 0.5 mm (0.02 in) band of GM approved threadlock to the threads of the fuel rail retaining bolts (1).
  6. CAUTION:

    Refer to Fastener Caution .

  7. Install the fuel rail to intake manifold retaining bolts (1) and tighten to 10 N.m (89 lb in).
  8. Install the fuel rail ground strap to intake manifold retaining bolt (2) and tighten to 10 N.m (89 lb in).
  9. Fig 3: Injector Electrical Connectors
    GM1950743Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage the engine wiring harness.

    NOTE:

    Observe the order sequence of the fuel injector electrical connectors (1).

  10. Connect the fuel injector electrical connectors (1) to the fuel injectors.
  11. Install the engine wiring electrical harness to the fuel rail.
  12. Connect the fuel feed hose to the fuel rail. Refer to Fuel Injection Fuel Feed Hose Replacement .
  13. Connect the negative battery cable.
  14. Inspect for leaks.
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.
  15. Install the engine cover. Refer to Engine Cover Replacement .