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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 974 (Engine Controls - 8.1L (Introduction)) >> Repair Instructions >> Fuel Hose/Pipes Replacement - Chassis (Pickup) >> Installation Procedure

Installation Procedure

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 fuel and EVAP bundle.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: Fuel And EVAP Bundle (Pickup)
    GM1228114Courtesy of GENERAL MOTORS CORP.
  2. Install the fuel and EVAP bundle clip nuts.

    Tighten:  Tighten the nuts to 12 N.m (106 lb in).

    3. Fig 2: Fuel And EVAP Lines At The Fuel Tank
    GM1238591Courtesy of GENERAL MOTORS CORP.
  3. Remove the caps from the fuel and EVAP lines at the fuel tank.
  4. Connect the fuel and EVAP quick connect fittings. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  5. If equipped with 4WD, install the torsion bar bracket. Refer to Torsion Bar Replacement in Front Suspension.
    6. Fig 3: View Of EBCM/EHCU Assembly
    GM379478Courtesy of GENERAL MOTORS CORP.
  6. Install the EHCU (1).
  7. Install the bolts (4) attaching the EHCU bracket to the frame (5).

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

    8. Fig 4: Identifying Chassis Electrical Connectors To EBCM
    GM924296Courtesy of GENERAL MOTORS CORP.
  8. Connect the brake lines to the BPMV.

    Tighten:  Tighten the fittings to 25 N.m (18 lb ft).

  9. Connect the chassis electrical harness connectors to the EBCM.
  10. Install the transfer case harness to the clip bracket.
  11. Install the clip to the bracket on the frame.
    12. Fig 5: Fuel Line Clip Bracket On Transmission
    GM1549622Courtesy of GENERAL MOTORS CORP.
  12. If equipped with 4WD, install the fuel line clip to the bracket on the transfer case.
  13. Install the fuel line clips to the brackets on the transmission.
  14. Install the HO2S sensor connector to the bracket.
    15. Fig 6: View Of Fuel Pipe Bracket & Nut At Bellhousing
    GM1238747Courtesy of GENERAL MOTORS CORP.
  15. Install the fuel pipe bracket to the bellhousing stud.
  16. Install the fuel pipe bracket nut.

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

    17. Fig 7: View Of Fuel Feed Pipe & EVAP Canister Purge Pipe
    GM1238587Courtesy of GENERAL MOTORS CORP.
  17. Lower the vehicle.
  18. Remove the caps from the fuel rail and EVAP line.
  19. Connect the fuel feed line (1) at the engine. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  20. Connect the EVAP canister purge tube line (2). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  21. Install the fuel fill cap.
  22. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  23. Use the following procedure in order to inspect for leaks:
    1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON, with the engine OFF.
    4. Inspect for fuel leaks.
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