Temperature gauge

[rgriffin5]

Hi new to this but my husband just replaced the water pump and thermostat for my 2000 taurus and now the temperature gauge is not working. could this be a sensor problem- He is not very mechanical and had a lot of help from friends to do this but they don't know why the guage is not working. Thanks for any help.

[tripletdaddy]

It may be as simple as it not being connected where the wire was knocked off or it wasn't reconnected after the repair. From there, there's a lot of room for speculation from it was damaged in the process, the wire to it is cut or grounded out...