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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System - 4.8L, 5.3L & 6.0L (Introduction)) >> Repair Instructions >> Fuel Hose/Pipes Replacement - Chassis (1500 Series - 5.3L (L59) Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: Clean all fuel pipe connections and surrounding areas before disconnecting the pipes in order to avoid possible fuel system contamination.
    Fig 1: View Of EVAP/Fuel Hose/Pipes
    GM856643Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure .
  2. Disconnect the fuel feed and return pipes (1) at the fuel rail. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
  3. Disconnect the evaporative emission (EVAP) canister purge tube (3).
  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. Unbolt and reposition the front propeller shaft. Refer to Propeller Shaft Replacement - Front in Propeller Shaft.
    7. Fig 2: View Of Fuel Pipe Bracket & Nut At Bellhousing
    GM1238747Courtesy of GENERAL MOTORS CORP.
  7. Remove the fuel pipe bracket nut.
  8. Remove the fuel pipe bracket from the bellhousing stud.
    9. Fig 3: View Of Fuel Line Clip At Bracket On Automatic Transmission
    GM856646Courtesy of GENERAL MOTORS CORP.
  9. Remove the fuel line clip from the bracket on the automatic transmission.
    10. Fig 4: View Of Fuel Hose/Pipe Clip At Bracket On Transfer Case
    GM300385Courtesy of GENERAL MOTORS CORP.
  10. If equipped with 4-wheel drive (4WD), remove the fuel hose/pipe clip from the bracket on the transfer case.
    11. Fig 5: View Of Fuel Filter Bracket Bolt, Fuel Hose/Pipe Bracket Bolt & Integral Locator Tab
    GM855761Courtesy of GENERAL MOTORS CORP.
  11. Remove the EVAP canister. Refer to Evaporative Emission (EVAP) Canister Replacement (1500 Series)  or Evaporative Emission (EVAP) Canister Replacement (1500 Series - 5.3L (L59) Engine)  or Evaporative Emission (EVAP) Canister Replacement (2500 Series) .
  12. Remove the fuel filter bracket bolt (2).
    13. Fig 6: View Of Chassis Fuel Pipe & Fuel Tank Pipe
    GM855745Courtesy of GENERAL MOTORS CORP.
  13. Disconnect the fuel feed and return pipes (4) from the fuel tank lines (3). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  14. Cap the fuel and EVAP pipes at the fuel tank.
    15. Fig 7: View Of Fuel/EVAP Line Bundle (1500 Series - 5.3L (L59) Engine)
    GM856649Courtesy of GENERAL MOTORS CORP.
  15. Remove the fuel and EVAP line clips from the frame and brace.
  16. Remove the fuel/EVAP line bundle.
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