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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 >> Removal Procedure

Removal 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.
NOTE:

Clean all fuel and evaporative emission (EVAP) lines connections and surrounding areas prior to disconnecting the lines in order to avoid possible fuel and/or EVAP system contamination.

    Fig 1: EVAP Canister Purge Tube And Quick Connect Fitting
    GM1696917Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief (Without CH 48027) .
  3. Disconnect the EVAP line (1) quick connect fitting from the chassis EVAP line. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Disconnect the fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  5. Cap the fuel rail and EVAP pipes.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the transfer case. Refer to Transfer Case Assembly Replacement .
    8. Fig 2: Chassis Wiring Harness Electrical Connector, Fuel Pressure Sensor And Fuel Pipe Bracket
    GM1964193Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the chassis wiring harness electrical connector (1) from the fuel pressure sensor (2).
  9. Disconnect the engine wiring harness clip (4) from the fuel pipe bracket (3).
    10. Fig 3: Fuel/Evaporative Emission Pipe And Bracket
    GM1701047Courtesy of GENERAL MOTORS CORP.
  10. Lower the transmission and remove the fuel pipe bracket nut from the bellhousing stud.
    11. Fig 4: Fuel Line Clip At Bracket
    GM1549616Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel line clip from the bracket on the automatic transmission.
  12. If equipped with 4-wheel drive (4WD), remove the fuel hose/pipe clip from the bracket on the transfer case.
  13. Disconnect the range selector cable from the transmission range selector. Refer to Range Selector Lever Cable Replacement .
  14. Remove the hybrid brake pressure modulator valve. Refer to Brake Pressure Modulator Valve Replacement .
    15. Fig 5: EVAP Lines, Fuel Feed Lines And Fittings
    GM1704490Courtesy of GENERAL MOTORS CORP.
  15. Remove the fuel line bracket bolt (3).
  16. Disconnect the chassis EVAP line quick connect fitting (4) from the fuel tank line. Refer to Plastic Collar Quick Connect Fitting Service .
  17. Disconnect the fuel tank fuel feed line quick connect fitting (5) from the chassis line. Refer to Plastic Collar Quick Connect Fitting Service .
  18. Cap the fuel and EVAP lines in order to prevent possible fuel and/or EVAP system contamination.
  19. Remove the fuel/EVAP line clips from the frame and crossmember.
  20. Remove the fuel line bracket locator tab from the frame.
  21. Remove the fuel/EVAP lines from the vehicle.
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