Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 386 (ENGINE CONTROLS - REMOVAL & INSTALLATION)FUEL SYSTEMSFUEL SYSTEM CLEANING
2004 Oldsmobile Bravada AWD
Fuel System Cleaning
2004 Oldsmobile Bravada AWDSECTION Fuel System Cleaning
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When flushing the fuel tanks, 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. Whenever the fuel tank is cleaned, the fuel pump fuel strainer must be inspected. If the fuel pump fuel strainer is contaminated, the fuel pump fuel strainer must be replaced and the fuel pump must be inspected.
- Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Drain the fuel tank. See FUEL TANK DRAINING .
- Remove the fuel tank. See FUEL TANK . Remove the fuel sender assembly. See FUEL SENDER ASSEMBLY .
- Inspect the fuel pump inlet for dirt and debris. If dirt and debris are found, the fuel pump needs to be replaced. Flush the fuel tank with hot water. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete.
- Allow the tank to dry completely before reassembly. Install the fuel sender assembly. See FUEL SENDER ASSEMBLY . Install the fuel tank. See FUEL TANK .
- Refill the fuel system. Install the fuel filler cap. Connect the negative battery cable. Perform the following procedure in order to inspect for leaks: Turn the ignition on for 2 seconds. Turn the ignition off for 10 seconds. Turn the ignition on. Inspect for fuel leaks.
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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.