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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Controls And Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Evaporative Emission Line Replacement - Chassis >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: EVAP Lines, Fuel Feed Lines And Fittings
    GM1704490Courtesy of GENERAL MOTORS CORP.
  1. Install the fuel/EVAP lines to the vehicle.
  2. Install the fuel line bracket locator tab to the frame.
  3. Install the fuel/EVAP line clips to the frame and crossmember.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Install the fuel line bracket bolt (3).

    Tighten 

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

  5. Remove the caps from the fuel and EVAP lines.
  6. Connect the chassis EVAP line quick connect fitting (4) to the fuel tank line. Refer to Plastic Collar Quick Connect Fitting Service .
  7. Connect the fuel tank fuel feed line quick connect fitting (5) to the chassis line. Refer to Plastic Collar Quick Connect Fitting Service .
    8. Fig 2: Fuel Line Clip At Bracket
    GM1549616Courtesy of GENERAL MOTORS CORP.
  8. If equipped with 4WD, install the fuel hose/pipe clip to the bracket on the transfer case.
  9. Install the fuel line clip to the bracket on the automatic transmission.
    10. Fig 3: Fuel/Evaporative Emission Pipe And Bracket
    GM1701047Courtesy of GENERAL MOTORS CORP.
  10. Install the fuel pipe bracket nut to the bellhousing stud.

    Tighten 

    Tighten the nut to 20 N.m (15 lb ft).

  11. Install the hybrid brake pressure modulator valve. Refer to Brake Pressure Modulator Valve Replacement .
  12. Install the transfer case. Refer to Transfer Case Assembly Replacement , for the BW 4485-NP3 transfer case or Transfer Case Assembly Replacement for the MP 3023/3024-NQH transfer case.
    13. Fig 4: Chassis Wiring Harness Electrical Connector
    GM1911650Courtesy of GENERAL MOTORS CORP.
  13. Connect the chassis wiring harness electrical connector (1) to the fuel pressure sensor (2).
  14. Connect the engine wiring harness clip (4) to the fuel pipe bracket (3).
  15. Lower the vehicle.
    16. Fig 5: EVAP Canister Purge Tube And Quick Connect Fitting
    GM1696917Courtesy of GENERAL MOTORS CORP.
  16. Remove the caps from the fuel rail and EVAP line.
  17. Disconnect the EVAP line (1) quick connect fitting from the chassis EVAP line. Refer to Plastic Collar Quick Connect Fitting Service .
  18. Disconnect the fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  19. Install the fuel fill cap.
  20. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  21. 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.
  22. Install the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
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