LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1168 (Engine Controls - 6.0L - Alternative Fuels (Introduction)) >> Repair Instructions >> Fuel Rail Assembly Replacement (KL6) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Fuel Rail Assembly Components
    GM798436Courtesy of GENERAL MOTORS CORP.
  1. Install the fuel rail assembly into the intake manifold.
    2. Fig 2: Locating Right Fuel Rail Attaching Bolts
    GM798434Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Apply a 5 mm (0.020 in) band of GM P/N 1234382 threadlock, or equivalent, to the threads of all of the fuel rail attaching bolts.
  3. Install the right fuel rail attaching bolts (3).

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

    4. Fig 3: Locating Left Fuel Rail Attaching Bolts
    GM798435Courtesy of GENERAL MOTORS CORP.
  4. Install the left fuel rail attaching bolts (3, 4).

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  5. Tighten the gasoline crossover pipe retainer.

    Tighten:  Tighten the screws to 3.8 N.m (34 lb in).

  6. Connect the fuel injector electrical connectors to the corresponding engine cylinder injector for both gasoline and CNG.
  7. Connect the CNG fuel rail pressure sensor and temperature sensor electrical connectors.
    8. Fig 4: View Of Rear Of Engine Fuel Pipe Connections
    GM300360Courtesy of GENERAL MOTORS CORP.
  8. Connect the fuel pressure regulator vacuum line.
  9. Connect the gasoline fuel feed and return pipes (1, 2) to the fuel rail.
    10. Fig 5: Identifying IPR Fuel Outlet Lines Components
    GM757010Courtesy of GENERAL MOTORS CORP.
  10. Install the CNG fuel lines (5, 8) into the fuel rails (1, 10) with new O-rings. Lubricate the O-rings with petroleum jelly.
  11. Install the fuel line to rail retainers (7) and clamps (9).

    Tighten:  Tighten the clamps to 2 N.m (18 lb in).

    12. Fig 6: Identifying Upper Engine Wire Harness Retainer
    GM310125Courtesy of GENERAL MOTORS CORP.
  12. Position the upper engine wire harness in place.
  13. Connect the EVAP purge solenoid connector.
  14. Install the retainer nut to the upper engine wire harness.

    Tighten:  Tighten the nut to 5.5 N.m (49 lb in).

    15. Fig 7: View Of Accelerator/Throttle Cable
    GM389031Courtesy of GENERAL MOTORS CORP.
  15. Connect the accelerator control cable and the cruise control cable to the throttle body (if equipped).
    16. Fig 8: Locating Accelerator Control Cable and Cruise Control Cable
    GM389853Courtesy of GENERAL MOTORS CORP.
  16. Connect the accelerator control cable and the cruise control cable to the cable bracket (if equipped).
    17. Fig 9: View Of Top Engine Cover
    GM665886Courtesy of GENERAL MOTORS CORP.
  17. Install the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical in the C/K Pickup service manual.
  18. Start the vehicle and inspect for CNG fuel leaks at the serviced fittings with the J 45878  or an equivalent leak detector. See Special Tools and Equipment .
  19. With a scan tool command a switch-over to gasoline and inspect for gasoline fuel leaks.
  20. Install the engine sight shield. Refer to Engine Sight Shield Replacement (4.8L, 5.3L, and 6.0L Engines) Engine Sight Shield Replacement (6.0L Engine w/RPOs Y91 and Z88) in Engine Mechanical in the C/K Pickup service manual.
scientia non olet · About LEMON Manuals