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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 382 (ENGINE CONTROLS - 4.3L (INTRODUCTION))REPAIR INSTRUCTIONSFUEL SYSTEM CLEANING
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Fuel System Cleaning
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Fuel System Cleaning
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the sending unit. Refer to Fuel Sender Assembly Replacement .
- Inspect the fuel strainer. Replace a contaminated strainer and inspect the fuel pump.
- Inspect the fuel pump inlet for dirt and debris. Replace the fuel pump if you find dirt or debris in the fuel pump inlet.
- Flush the fuel tank with hot water.
- Pour the water out of the fuel sender assembly opening.
- Rock the tank to be sure that removal of the water from the tank is complete.
- Install the sending unit. Refer to Fuel Sender Assembly Replacement .
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.
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.