Okay, so my tach has shut off randomly, twice. Once while I was driving to work, and another which I was parked. Both times it shut off, it shut off around 4500RPM. (The needle stays around 4500 RPM when the tach is off). This is an autometer tach. I checked all of my wiring, but everything looks fine.
Also, it comes back on randomly. Both times while I was driving (Which made me think it was the wiring coming lose...Because maybe I hit a bump or something.)
When I say the tach turns off...It turns off. No more power. Shift light won't come on..Anything.
I have noticed before it turns off...Or for the past few days...The needle has been a bit bouncy.
Looking for some help as to what it might be.

Thanks,
Meatball

 

I checked all wires, and remembered I forgot to check my ground. Somehow my ground came loose, and was easily fixed.