s13 tach is a little jumpy
 

Welp...

The tach works fine at all times, it's just jumpy. Whenever I'm driving, cruising at a steady RPM, the tach will jump from -5 to +5 RPMs. When I hit bumps in the road the jump is more.

I did a little digging around, nothing spectacular popped up. Hope someone has some insight because I know other S-chassis owners have had this problem.

Thank yee.

the only time I had jumpy gauges, the cluster started crapping out shortly afterwards.
I'm sure it is something that can be fixed, but I honestly don't know how. Maybe if it was obvious after you pull it all apart, you could solder whatever it needed, but If it was me, I'd just deal with it til it went out and get a new one in there.

Half of my crap around the column is already pulled out for whatever reason. Sometime this week when the weather isn't crappy, I'll delve into the cluster. I have a couple of tachs so I'll swap 'em around and see what happens.