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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1366 (ENGINE CONTROL SYSTEM (INTRODUCTION) -- 1.8L (LNK))REPAIR INSTRUCTIONSFUEL SYSTEM CLEANING
2004 Oldsmobile Bravada RWD

Fuel System Cleaning

2004 Oldsmobile Bravada RWDSECTION Fuel System Cleaning
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • If a fuel system problem is caused by contaminated fuel or other foreign material in the fuel tank, the tank must be cleaned. If the tank is rusted or is still contaminated after cleaning, the tank must be replaced.
  • Only use oil-free compressed air to blow out the fuel pipes.
  • Inspect the fuel tank internally and clean the fuel tank if the you find a plugged fuel filter.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable.
  2. Remove the fuel tank from the vehicle. Refer to Fuel Tank Replacement .
  3. Remove the fuel sender assembly from the fuel tank. Refer to Fuel Sender Assembly Replacement .
    4. IMPORTANT: When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Handle the fuel and water mixture in accordance with all applicable local, state, and federal laws and regulations.
  4. Fill the fuel tank with hot water.
  5. Shake the fuel tank vigorously for 5 minutes.
  6. Drain the fuel tank.
    7. IMPORTANT: If the inside of the fuel tank contains any traces of rust after cleaning, replace the fuel tank.
  7. Inspect that all of the water is removed from the fuel tank.
  8. Install the fuel sender assembly to the fuel tank. Refer to Fuel Sender Assembly Replacement .
  9. Install the fuel tank to the vehicle. Refer to Fuel Tank Replacement .
  10. Refill the fuel tank.
  11. Connect the negative battery cable.
  12. Inspect for fuel leaks and repair as necessary.
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.