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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.0L - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Identifying Fuel Injector O-Ring Seals
    GM1954075Courtesy of GENERAL MOTORS CORP.
  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 CORP.
  3. Install the fuel rail assembly (3) to the intake manifold.
  4. Apply a 0.5 mm (0.02 in) band of GM approved threadlock to the threads of the fuel rail retaining bolts (1).
    5. CAUTION:

    Refer to Fastener Caution .

  5. Install the fuel rail to intake manifold retaining bolts (1) and tighten to 10 N.m (89 lb in).
  6. Install the fuel rail ground strap to intake manifold retaining bolt (2) and tighten to 10 N.m (89 lb in).
    7. Fig 3: Identifying Injector Electrical Connectors
    GM1950743Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • Do not damage the engine wiring harness.
    • Observe the order sequence of the fuel injector electrical connectors (1).
  7. Connect the fuel injector electrical connectors (1) to the fuel injectors.
  8. Install the engine wiring electrical harness to the fuel rail.
  9. Connect the fuel feed pipe to the fuel rail. Refer to Fuel Line Replacement - Engine .
  10. Connect the negative battery cable.
  11. 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.
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