Jeff

Hi everyone, here's another wierd alarm scenerio if anyone might be able to weigh in on the possible cause. At cruise or idle, the the tach reading momentarily drops to zero (but actual engine rpm remains unchanged) the volt light blinks on, and the alarm then sounds, then everything goes back to normal after a couple seconds.

It just started happening and now seems to happen every 5 miniutes or so. I've looked for loose connections and cleaned the ground buss block all to no avail.