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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 385 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 4.2L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL TANK REPLACEMENTREMOVAL PROCEDURE
2006 Isuzu Ascender S, 5.3 M, 4WD

Removal Procedure

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027)  or Fuel Pressure Relief (Without CH 48027) .
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the frame brace. Refer to Frame Brace Replacement .
  4. Remove the fuel tank shield, if equipped. Refer to Fuel Tank Shield Replacement .
  5. Drain the fuel tank. Refer to Fuel Tank Draining .
    6. Fig 1: Identifying Evaporative Emission (EVAP) Canister Pipes
    GM1480088Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the evaporative emission (EVAP) canister fresh air pipe. Refer to Plastic Collar Quick Connect Fitting Service .
  7. Disconnect the EVAP canister solenoid pipe. Refer to Plastic Collar Quick Connect Fitting Service .
  8. Disconnect the EVAP purge pipe. Refer to Plastic Collar Quick Connect Fitting Service .
    9. Fig 2: Identifying Fuel Tank Fill Pipe & Recirculation Hose
    GM1480087Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the fuel filler pipe recirculation hose from the fuel tank. Refer to Plastic Collar Quick Connect Fitting Service .
  10. Loosen the clamp securing the fuel fill pipe to the fuel tank.
  11. Disconnect the fuel fill pipe from the fuel tank.
    12. Fig 3: Identifying Fuel Feed Pipe & EVAP Pipes
    GM1368522Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the fuel feed pipe (2) and EVAP pipe (1) from the fuel tank. Refer to Plastic Collar Quick Connect Fitting Service .
  13. Cap the fuel and EVAP pipes in order to prevent possible fuel system contamination.
  14. Support the fuel tank.
    15. Fig 4: View Of Fuel Tank Straps
    GM1480086Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.