The fuel tank should be purged before servicing.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

Important: Gasoline mixed with water and water mixed with an emulsifying agent needs to be treated as a hazardous material. The material needs to be handled in accordance with all of the applicable local, state, and federal laws and regulations.

1. Disconnect the negative battery cable.
2. Drain the fuel tank. Refer to Fuel Tank Draining Procedure .
3. Remove the fuel tank from the vehicle. Refer to Fuel Tank Replacement .
4. Remove the modular fuel sender. Refer to Fuel Sender Assembly Replacement .
5. Remove all of the remaining fuel from the tank.
6. Inspect the tank for any remaining fuel.
7. Pour tap water into the tank.

•	Move the tank into the flushing area (wash rack).

•	Agitate the water vigorously.

•	Drain the tank.

8. Pour the gasoline emulsifying agent into the tank. Use an available emulsifying agent.
9. Add water to the fuel tank.

•	Refer to the emulsifying agent specifications for the mixture ratio.

•	Agitate the mixture for ten minutes.

•	Drain the tank completely.

•	Fill the tank with water until the tank overflows.

•	Completely flush out any remaining mixture.

•	Drain the fuel tank.

•	Use an explosion meter (if available) in order to check for a negative reading.