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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1913 (ENGINE CONTROLS AND FUEL - 3.6L (LCS) - INTRODUCTION)REPAIR INSTRUCTIONSFILLER TUBE REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Fuel Tank Fill Pipe Screws
    GM1885419Courtesy of GENERAL MOTORS CORP.
  1. Drain the fuel tank until the level in the tank is less than 1/4 full. Refer to Fuel Tank Draining .
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Remove the fuel fill cap.
  4. Remove the fuel tank fill pipe housing to fuel tank fill pipe screws (1).
    5. Fig 2: Fuel Fill Pipe Upper Bracket Nut
    GM1885420Courtesy of GENERAL MOTORS CORP.
  5. Remove the right rear wheelhouse liner. Refer to Rear Wheelhouse Panel Liner Replacement .
  6. Remove the fuel fill pipe upper bracket nut (1).
    7. Fig 3: Fill Pipe Vent Line Quick Connect Fitting
    GM1884596Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the fill pipe vent line quick connect fitting (4) from the fuel tank fresh air line (3). Refer to Plastic Collar Quick Connect Fitting Service .
  8. Disconnect the fuel tank vapor line quick connect fitting (2) from the fill pipe recirculation line (5). Refer to Plastic Collar Quick Connect Fitting Service .
  9. Loosen the fuel fill pipe hose clamp (1) at the fuel tank.
  10. Remove the fuel fill pipe (6) from the fuel tank.
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.