Tachometer

Tach Problem

Chris,

The coil can cause erratic tach operation. I had this problem and DUI told me to change the coil. I did and the problem was resolved.

And, yes it could be a bad connection on any of the three tach wires, power, ground or tach signal.

Thanks, Neil I did have the distributor cap off to inspect everything and maybe I bumped something loose. I'll look there and make sure everything is tight. The coil is just a couple of months old and is an MSD. Sure hope it's not bad already.


Chris

Chris,
If I remember correctly I was having a problem with my fuse to my tach and was sometimes getting the same response. When it starts acting up check the fuse and the ground.
Glenn

Thanks Neil and Glenn. I checked all the wiring and everything looked good and the ground was secure. I, luckily for me, had the original coil that came from the factory and replaced the MSD coil I had installed and it works good again.

Chris

Thanks, Jon. I'll double check that just to make sure. Coincidentally, when I changed the coil out it does fine now but ya never know.

Chris