I'm pretty sure they are cable driven. Often the plastic gear that the speedo cable plugs into in the gauge will wear out and fail. But before assuming that, check the cable itself. If isn't broken than it's probably the gauge in the cluster.
HOW DO YOU REMOVE AND INSTALL A SPEEDOMETER SENSOR IN A 2001 FOR ESCORT ZX2,AUTO.
speedometer won't work, where is it need picture
This is very common on the 1996 Ford Escort unfortunately. Basically the speedometer cable has to be re-greased or the speedometer has to be replaced with the older 80mph model. Both "fixes" require disassembly of the dash to get to the cable/speedometer. See the ford escort owners association for more details/instructions.
it doesnt have one, it is an electronic speedometer
Replace the VSS and wires.
Look up 1991 ford escorts manual transmission speedometer
odometer 2002 ford escord
Disconnect everything and pull it out if it is like a manual 1991 ford escort
buy another one from a breakers yard
behind the steering wheel on the speedometer for the car
First check the speedometer cable going into the top of the transmission. If it is not broken the instrument cluster must be replaced.
The car going down hill symbol on the speedometer. What does it indicate?