Noticed my odometer and trip meter quit working today, but my speedo is still fine. Took it apart expecting the work gear (little piece of plastic on the motor) to be broken since it is a really common occurrence only to find that all of the little gears appear fine. Any ideas?

Thinking maybe a fuse or the little motor has gone bad

 

Update, looks as if the odometer may be working, possibly a little slow. But since I took off the needles to my speedometer and tac they seem to be a little off. Oops

 

My odometer and trip meter isnt working as well on my 97 f150 I'm not sure what it could be