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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 427 (ENGINE CONTROLS - SYSTEM TESTING & ENGINE COMPONENT TESTS - 3.1L)FUEL SYSTEMSFUEL SYSTEM CLEANINGCLEANING PROCEDURE
2004 Oldsmobile Bravada RWD

Cleaning Procedure

2004 Oldsmobile Bravada RWDSECTION Cleaning Procedure
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel tank. See appropriate REMOVAL & INSTALLATION article.
  2. Check the fuel strainer. Replace a contaminated strainer and inspect the fuel pump.
  3. Check the fuel pump inlet for dirt and debris. If dirt and debris are found, the fuel pump needs to be replaced.
  4. Flush fuel tank with hot water.
  5. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank to ensure that the removal of the water from the fuel tank is complete.
  6. Allow tank to dry completely before reassembly.
  7. Disconnect the fuel pipes at the fuel rail.
    8. NOTE: Only use oil free compressed air to blow out the fuel pipes.
  8. Clean the fuel pipes by applying air pressure in the opposite direction of the fuel flow.
  9. Connect the fuel pipes at the fuel rail.
  10. Replace the fuel filter.
  11. Install the fuel sender assembly.
  12. Install 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.