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 RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1454 (ENGINE CONTROLS (INTRODUCTION) -- 5.7L)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 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Tools Required
- J 34730-1A Fuel Pressure Gauge. See Special Tools and Equipment .
- J 37088-A Tool Set, Fuel Line Quick Connect Separator. See Special Tools and Equipment .
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure .
- Drain the fuel tanks. Refer to Fuel Tank Draining Procedure .
- Remove the fuel tanks. Refer to Fuel Tank Replacement (Right) or Fuel Tank Replacement (Left) .
- Remove the fuel sender assemblies. Refer to Fuel Sender Assembly Replacement (RH) or Fuel Sender Assembly Replacement (LH) .
- Inspect the left fuel sender strainer. Replace a contaminated strainer for the left fuel sender only, and inspect the fuel pump.
- Inspect the left fuel sender fuel pump inlet for debris. Replace the left fuel sender assembly if you find debris in the fuel pump inlet.
- Inspect the right fuel sender strainers. Replace the right fuel sender assembly if you find a contaminated strainer. The right fuel sender strainers are not serviced separately.
- Flush the fuel tanks with hot water.
- Pour the water out of the fuel sender assembly openings. Rock the tanks to be sure that removal of the water from the tanks is complete.
- Install the fuel sender assemblies. Refer to Fuel Sender Assembly Replacement (RH) or Fuel Sender Assembly Replacement (LH) .
- Install the fuel tanks. Refer to Fuel Tank Replacement (Right) or Fuel Tank Replacement (Left) .
- Refill the fuel system.
- Install the fuel filler cap.
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Perform the following procedure in order to inspect for leaks:
- Turn the ignition switch ON for 2 seconds.
- Turn the ignition switch OFF for 10 seconds.
- Turn the ignition switch ON.
- Inspect for fuel leaks.
- Program the transmitters. Refer to Transmitter Programming in Keyless Entry.
CAUTION:
Refer to Battery Disconnect Caution
in Cautions and Notices.
IMPORTANT:
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.
RENDER: 1.0x
NO RELATED
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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.