I have an 05 GT and am experiencing a problem with the tach. I had my plugs changed out about a week ago and had no problems. Now today on my way home from work my tach stopped at about 2,250 RPM and will not move. I have tried turning the car off and restarting but it wont move. It is just stuck there. I am curious if it has something to do with a sensor or wire being disconnected or not connected all the way when they changed out my plugs. I do not think it is the gauge cluster because everything else works normal and the car drives normal. It is just the tach is stuck and wont move. Any ideas or anyone experience this and know how to fix it.

 

Have you check your fuses bye passenger legs? Ive heard of them blowing quiet often on people.