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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 975 (ENGINE CONTROLS - 4.3L (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 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel tank filler housing to body screws (1) and retainer (2).
    2. Fig 1: View Of Fuel Tank Filler Housing To Body Screws & Retainer
    GM853731Courtesy of GENERAL MOTORS CORP.
  2. Partially drain the fuel tank. Refer to Fuel Tank Draining Procedure .
  3. Remove the fuel tank filler housing to fuel tank fill pipe screws.
  4. Remove the fuel tank filler housing.
    5. Fig 2: Identifying Fuel Filler Components
    GM300318Courtesy of GENERAL MOTORS CORP.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the fuel tank ground strap (3).
  7. Remove the chassis harness ground strap (2) and fuel tank ground strap (4).
    8. Fig 3: View Of EVAP Canister Vent Valve Electrical Connector, Chassis Harness Ground Strap, Fuel Tank Ground Strap Bolt & Fuel Tank Ground Strap
    GM815635Courtesy of GENERAL MOTORS CORP.
  8. Remove the rear axle vent hose from the clip on the fuel fill pipe bracket.
    9. Fig 4: View Of Rear Axle Vent Hose At Clip On Fuel Fill Pipe Bracket
    GM816707Courtesy of GENERAL MOTORS CORP.
  9. Loosen the fuel tank fill pipe clamp.
  10. Remove the fuel fill pipe from the tank and vehicle.
    11. Fig 5: View Of Fuel Tank Fill Pipe
    GM816694Courtesy of GENERAL MOTORS CORP.
  11. Cap the opening on the fuel tank in order to prevent possible fuel system contamination.
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.