However, if you absolutely *must* drain the tank (e.g., for repair work requiring a completely empty tank), here's a *general outline* that still carries significant risk:
WARNING: This process is inherently dangerous. Improper handling of gasoline can lead to serious injury or death. If you are not comfortable with this, contact a qualified mechanic.
1. Safety First: Work in a well-ventilated area, away from any ignition sources (including cigarettes, sparks, or open flames). Wear safety glasses and gloves. Have a fire extinguisher readily available.
2. Disconnect the Battery: This will prevent accidental sparks.
3. Locate the Fuel Tank: It's usually located under the vehicle, near the rear axle.
4. Access the Fuel Pump: You'll need to access the fuel pump either through a fuel pump access panel (if your Windstar has one) or by dropping the fuel tank. This requires specialized tools and knowledge. Dropping the tank is a complex process involving disconnecting fuel lines, electrical connectors, and possibly other components. Refer to a repair manual specific to your 1999 Ford Windstar LX for detailed instructions.
5. Drain the Tank: Once you have access to the fuel pump, there may be a drain plug (some vehicles have them, others don't). If there is a drain plug, carefully remove it, allowing the gas to flow into a suitable container (a clean, approved gas can, *not* a plastic bottle). Be extremely careful not to spill any gasoline.
6. If No Drain Plug: You'll likely need to siphon the gas using a siphon pump designed for this purpose. Never attempt to siphon gas by mouth.
7. Dispose of Gasoline Properly: Take the drained gasoline to a recycling center or auto parts store that accepts used gasoline. Never pour it on the ground or down the drain.
8. Reassemble Everything: Once the tank is empty, carefully reassemble everything you disassembled, ensuring all connections are secure. Reconnect the battery.
Again, this is a dangerous procedure. Incorrectly handling gasoline can result in serious injury or death from fire or explosion. If you're unsure about any aspect of this process, consult a qualified mechanic. They have the tools, knowledge, and safety equipment to do this properly and safely. They also have the proper disposal channels for the gasoline. The cost of professional service is far less than the cost of a serious injury.
