Thunderbird V8-4.6L VIN W (1997)
Fuel Pressure Relief Valve: Service Precautions
WARNINGS
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Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable
mixtures are always present and may be ignited, resulting in possible personal injury.
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Fuel in the fuel system remains under high pressure even when the engine is not running.
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Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved.
