I have an autometer monster tach, and it was working fine up until about a month ago. One minute it was fine, the next minute its dead. I still have power, still have light, but there is no signal going to the needle. All the connection seem to be there correctly, and i even swtiched tachs to see if that was the problem...help!?!?!?!

 

Have you checked the tach signal wire coming to the tach? Maybe its got a break in it somewhere. Use a multimeter on the wire, and see if it getting a reading.

 

speedo senser?

 

Are you sure that the wire under the hood is getting power you might want to trace that wire as well

 

I will try the multi meter today, but as far as tracing the line, everything appears to bein working order. I just changed the speed sensor less thena month ago so its cool...any other ideas?