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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 267 (ENGINE CONTROLS - REMOVAL & INSTALLATION)FUEL SYSTEMSFUEL TANKFUEL TANK/SYSTEM CLEANING
2004 Oldsmobile Bravada RWD

Fuel Tank/System Cleaning

2004 Oldsmobile Bravada RWDSECTION Fuel Tank/System Cleaning
WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary.
  1. Remove the fuel tank, if not already removed. Remove the fuel sender assembly from fuel tank, if not already removed.
  2. Inspect the fuel sender strainer. Replace the fuel sender assembly if the fuel strainer is contaminated.
    3. NOTE: When flushing the fuel tank, the fuel and water mixture needs to be treated as a hazardous material. The material needs to be handled in accordance with all local, state and federal laws and regulations.
  3. Flush the fuel tank with hot water.
  4. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank to be sure that the removal of the water from the fuel tank is complete.
  5. Allow tank to dry completely before reassembly.
    6. NOTE: Only use oil-free compressed air to blow out fuel pipes.
  6. Disconnect fuel pipes at engine compartment fuel pipes. See FUEL LINE DISCONNECT FITTINGS  .
  7. Clean the fuel pipes by applying air pressure in the opposite direction of the fuel flow.
  8. Connect the fuel pipes to the engine compartment fuel pipes.
  9. Replace the fuel filter. See FUEL FILTER  . Install the fuel sender assembly. Install the fuel tank.
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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.