tach

I've searched the Internet a bit and nobody seems to have an answer for this one. When my starter relay began failing last week, the tach needle jumped all over the place so much that now it rests up at 12k. It seems to rev normally but is 5k to the left of where it should be. So when I rev...

When I reconnected my battery I noticed a tick, tick, tick sound and my tach needle moved backwards so it was at about the 2pm position... With the engine running it reads corresponding low so I disconnected the battery and when I reconnected it it ticked back another 60 degrees or so... I did...