Contour's Temperature Gauge

The temperature gauge of my '99 Ford Contour is always in the same place. Whether the engine is cold or hot, running or not. Does anybody know if it
is something easy to fix? Or should I just grab my wallet and head for the mechanic's shop?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.