Where is the emergency fuel botton on 2002 Lincoln town car?

There's no "emergency fuel button" in a 2002 Lincoln Town Car, or in most modern vehicles. There's no mechanism to provide a quick burst of fuel in an emergency situation like that.

If you're having fuel-related problems, the issue is likely a different mechanical or electrical malfunction. You'd need to address the underlying problem, not look for a non-existent emergency button. Consider calling a roadside assistance service or a mechanic.