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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Fuel Pipes and Fuel Rail Installation

Fuel Pipes and Fuel Rail Installation

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the right fuel rail.
    2. Fig 1: View Of Right Fuel Rail
    GM1335617Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the right fuel rail mounting bolts.

    Tighten:  Tighten the right fuel rail mounting bolts to 25 N.m (18 lb ft).

  3. Install the left fuel rail.
    4. Fig 2: View Of Left Fuel Rail And Bracket
    GM1335616Courtesy of GENERAL MOTORS CORP.
  4. Install the left fuel rail mounting bolts.

    Tighten:  Tighten the left fuel rail mounting bolts to 25 N.m (18 lb ft).

    5. CAUTION: Improper torque methods of the fuel lines will result in fuel leaks and possible damage to the engine. Failure to follow proper fuel line fitting torque methods could result in serious personal injury.
  5. Install the injection pipes to the right bank.

    Tighten:  Tighten the injection pipes to 41 N.m (30 lb ft)

    6. Fig 3: View Of Fuel Injector Pipes
    GM1335614Courtesy of GENERAL MOTORS CORP.
    CAUTION: Improper torque methods of the fuel lines will result in fuel leaks and possible damage to the engine. Failure to follow proper fuel line fitting torque methods could result in serious personal injury.
  6. Install the injection pipes to the left bank.

    Tighten:  Tighten the injection pipes to 41 N.m (30 lb ft)

    7. Fig 4: View Of Left Fuel Injector Pipes
    GM1335608Courtesy of GENERAL MOTORS CORP.
  7. Install the EGR mounting brackets.
  8. Install the EGR mounting bracket bolts.

    Tighten:  Tighten the EGR mounting bracket bolts to 20 N.m (15 lb ft).

    9. Fig 5: View Of EGR Mounting Brackets & Bolts
    GM1335604Courtesy of GENERAL MOTORS CORP.
  9. Install the left fuel rail to pump pipe.

    Tighten:  Tighten the fuel rail to pump pipe nut to 41 N.m (30 lb ft).

    10. Fig 6: View Of Left Fuel Rail At Pump Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  10. Install the coolant pipe.
    11. Fig 7: View Of Coolant Pipe
    GM1335600Courtesy of GENERAL MOTORS CORP.
  11. Install the coolant pipe bolt and nut.

    Tighten:  Tighten the coolant pipe bolt and nut to 25 N.m (18 lb ft).

  12. Install the fuel pipe assembly bracket.
  13. Install the fuel pipe assembly bracket bolts.

    Tighten:  Tighten the fuel pipe assembly bracket bolts to 25 N.m (18 lb ft).

    14. Fig 8: View Of Fuel Pipe Assembly Bracket
    GM1335598Courtesy of GENERAL MOTORS CORP.
  14. Install the distribution block and fuel line assembly.
  15. Install the distribution block and fuel line assembly bolts.

    Tighten:  Tighten the fuel line assembly bolts to 25 N.m (18 lb ft).

    16. Fig 9: View Of Distribution Block, Fuel Line Assembly & Bolts
    GM1335596Courtesy of GENERAL MOTORS CORP.
  16. Connect the fuel hoses to the fuel injector pump.
    17. Fig 10: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  17. Install the right fuel return hose.
    18. Fig 11: View Of Right Fuel Return Hose & Injectors
    GM1335592Courtesy of GENERAL MOTORS CORP.
  18. Install the left fuel return hose.
    19. Fig 12: View Of Fuel Return Hose & Injectors
    GM1335588Courtesy of GENERAL MOTORS CORP.
  19. Install the fuel rail balance pipe.
  20. Install the fuel rail balance pipe bolts.

    Tighten:  Tighten the fuel rail balance pipe bolts to 21 N.m (15 lb ft).

    21. Fig 13: View Of Fuel Rail Balance Pipe & Bolts
    GM1335586Courtesy of GENERAL MOTORS CORP.
  21. Connect the fuel rail balance pipe to the fuel rails.

    Tighten:  Tighten the fuel rail balance pipe nuts to 41 N.m (30 lb ft).

  22. Install the fuel feed pipe.
    23. Fig 14: View Of Fuel Feed Pipe & Bolts
    GM1335584Courtesy of GENERAL MOTORS CORP.
  23. Install the fuel feed pipe attaching nuts and bolts.

    Tighten:  Tighten the fuel feed pipe bolts and nut to 25 N.m (18 lb ft).

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