Speedometer on my 2000 Lincoln Town car - 2000 Lincoln Town Car

the cable or the speedometer drive reducer or the speedometer are ready to fail,,,,

The cable or the speedometer drive reducer or the speedometer cable are ready to fail,,,,

Is your trip computer registering mileage and reading out fuel economy correctly? If not, replace the SPEED SENSOR.
If the trip computer appears to be working correctly, replace the SPEEDOMETER HEAD.

sounds like you may have a instrument cluster panel problem and will have to go to a shop that can fix it. its possible that there is a contact problem with the cluster to body connection.

ask a local mechanic as incomplete question ,sorry

My guess would be the speed sensor in the transmission.

If the speedometer itself is currently working fine, it may be that the Odometer and Trip-o-meter gears are broken. Lincolns OnLine have a large database of information regarding Town Cars from all years. This specific link will help you to order and replace the proper gears for your car.

http://www.lincolnsonline.com/tech/00202.html

loss battery cabel

yes

Check your gas cap. If someplace can test it you might luck out. This website advertises manuals and info online. The evaporator cannister is suppose to purify excess fuel vapors. But a system which is not sealed will code an error lamp.