To find the correct fuse:
1. Consult your owner's manual: This is the best resource. It will have a fuse box diagram showing the location of each fuse and what circuit each one protects.
2. Locate the fuse boxes: The 1997 Town Car likely has at least two fuse boxes: one under the hood and one inside the passenger compartment (often under the dashboard).
3. Identify the problem: Determine which electrical component isn't working (e.g., headlights, power windows, radio).
4. Check the fuse diagram: Once you know the circuit, find the corresponding fuse on the diagram.
5. Inspect the fuse: Carefully remove the fuse and check if the internal wire is broken. If it is, replace it with a fuse of the *same amperage*. Never use a higher amperage fuse as this could cause a fire.
Without knowing the specific electrical problem you're experiencing, I cannot tell you which fuse to check. Providing the problem will allow me or someone else to assist you more effectively.