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This can be quite difficult as the tank is designed to prevent fuel theft.

Basically you have to syphon the fuel

If you can it might be possible to remove a fuel line from the mechanical fuel pump on the side of the engine, extend it to the ground and syphon like that.

Otherwise a small diameter hose through the gas cap and a lot of waiting.

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11y ago
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Q: How do you drain the fuel system in 1988 Ford F-150?
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