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Home › Chevrolet › 2005 › Avalanche 2500 › Repair and Diagnosis › Engine Performance › System › Engine Control System - 8.1L - Introduction › Repair Instructions › Fuel Hose/Pipes Replacement - Chassis › Removal Procedure

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: View Of Fuel Feed Pipe & EVAP Canister Purge Pipe
    GM1238587Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. Disconnect the fuel feed pipe (1) at the fuel rail. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  3. Disconnect the evaporative emission (EVAP) canister purge pipe (2). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  4. Cap the fuel rail and EVAP pipes.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    6. Fig 2: View Of Fuel Pipe Bracket & Nut At Bellhousing
    GM1238747Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel pipe bracket nut.
  7. Remove the fuel pipe bracket from the bellhousing stud.
    8. Fig 3: View Of Fuel Line Clip At Bracket
    GM1549616Courtesy of GENERAL MOTORS CORP.
  8. Remove the fuel hose/pipe clip from the bracket on the automatic transmission.
  9. If equipped with 4-wheel drive (4WD), remove the fuel hose/pipe clip from the bracket on the transfer case.
  10. Remove the front fuel tank. Refer to Fuel Tank Replacement (Front Tank)  or Fuel Tank Replacement (Rear Tank) .
    11. Fig 4: View Of Fuel/EVAP Line Bundle
    GM1224406Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel line bracket nuts.
  12. Remove the fuel/EVAP line bundle.
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