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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 8.1L (Introduction) >> Repair Instructions >> Fuel Hose/Pipes Assembly Replacement (Intermediate) >> Removal Procedure
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Removal Procedure

IMPORTANT: Clean all fuel and evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting the lines in order to avoid possible fuel and/or EVAP system contamination.
    Fig 1: Locating Spare Tire
    GM385766Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. Remove the spare tire stowage lock cylinder.
    3. Fig 2: View Of Spare Tire
    GM385791Courtesy of GENERAL MOTORS CORP.
  3. Remove the spare tire.
  4. Drain the rear fuel tank. Refer to Fuel Tank Draining Procedure (Front Tank)  or Fuel Tank Draining Procedure (Rear Tank) .
  5. Remove the rear exhaust insulator.
    6. Fig 3: View Of Spare Tire Hoist Crossmember & Bolts
    GM871929Courtesy of GENERAL MOTORS CORP.
  6. Remove the spare tire hoist crossmember bolts and crossmember.
    7. Fig 4: View Of EVAP Canister & Quick Connect Fittings
    GM1372543Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the EVAP canister quick connect fittings. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
    8. Fig 5: View Of Fuel & EVAP Intermediate Lines At Fuel Tank
    GM1372710Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the fuel and EVAP intermediate lines from the front tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
    9. Fig 6: View Of Fuel Pressure Sensor Electrical Connector
    GM1372719Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the fuel pressure sensor electrical connector (1).
    10. Fig 7: View Of Fuel Tank & Straps
    GM1224381Courtesy of GENERAL MOTORS CORP.
  10. Support the fuel tank with a suitable jack.
  11. Remove the fuel tank strap bolts.
    NOTE: Refer to Damage to Fuel Tank Straps Notice in Cautions and Notices.
  12. Remove the fuel tank straps.
  13. With the aid of an assistant, lower the rear tank until the intermediate line connections can be reached.
    14. Fig 8: View Of Fuel & EVAP Intermediate Lines At Fuel Tank
    GM1224396Courtesy of GENERAL MOTORS CORP.
  14. Disconnect the fuel and EVAP intermediate lines from the rear tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  15. Remove the fuel and EVAP intermediate lines.
  16. Cap the fuel and EVAP lines in order to prevent possible EVAP/fuel system contamination.
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