So I reached under the driver side of the dash with my 8mm open end wrench and I was able to remove the gauge.

Opened it up, and the faceplate had come loose and stopped the needle from moving.

With the faceplate removed, i tested the gauge and it worked fine.

I need to "glue" the faceplate back on, since the plastic "o ring" that held the faceplate and clear gauge cover on is what failed.

Any thoughts on the type of glue? I was thinking CA or Ducco Cement.

Thanks

 

I would not use CA, it could haze the lens