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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - 8.1L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Tank Replacement (Cab/Chassis - Front) >> Removal Procedure

Removal Procedure

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IMPORTANT: Clean the fuel and evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the lines in order to avoid possible system contamination.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. If equipped with a rear auxiliary tank, disconnect the fuel feed and EVAP (evaporative emission ) quick connect fittings. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
    Fig 1: View Of Fuel Feed And Pressure Balance Lines
    GM1228187Courtesy of GENERAL MOTORS CORP.
  3. Cap the fuel feed and EVAP pipes in order to prevent possible system contamination.
  4. Loosen the fuel fill pipe clamp (2) at the tank.
    Fig 2: View Of Fuel Fill Pipe Clamp & Vent Pipe Clamp
    GM1228174Courtesy of GENERAL MOTORS CORP.
  5. Loosen the vent pipe clamp (1) at the tank.
  6. Remove the fuel fill pipe and vent pipe from the tank.
  7. Drain the fuel tank. Refer to Fuel Tank Draining Procedure .
  8. Disconnect the fuel sending unit and fuel pressure sensor electrical connectors (1).
    Fig 3: Fuel Pressure Sensor & Fuel Sending Unit Electrical Connectors
    GM1238183Courtesy of GENERAL MOTORS CORP.
  9. Remove the canister vent solenoid (CVS) line from the fuel tank clips.
  10. Disconnect the fuel feed and EVAP quick connect fittings from the sending unit. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
    Fig 4: Fuel Feed & EVAP Quick Connect Fittings At Sending Unit
    GM1228206Courtesy of GENERAL MOTORS CORP.
  11. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  12. Remove the fuel tank shield bolts.
    Fig 5: Fuel Tank Shield & Bolts (Cab/Chassis - Front)
    GM877744Courtesy of GENERAL MOTORS CORP.
  13. Remove the fuel tank shield.
  14. Place a suitable adjustable jack under the fuel tank.
  15. Remove the fuel tank strap bolts.
  16. Remove the fuel tank straps.
    Fig 6: Fuel Tank, Strap & Bolts (Cab/Chassis - Front)
    GM1228169Courtesy of GENERAL MOTORS CORP.
  17. Lower the fuel tank.
  18. With the aid of an assistant, place the fuel tank in a suitable work area.
  19. Cap the fuel and EVAP pipes in order to prevent possible system contamination.
  20. If necessary, remove the sending unit. Refer to Fuel Sender Assembly Replacement .
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