Wacky tach

[Travis Goodwin <tgoodwin@xxxx>]

Here's one for the books... 

I was driving down the road and I noticed that each time I hit a small bump,
the tachometer would drop to 0 and the oil pressure guage would drop to 0.
Then, it would come back the next time I hit a bump. At one point, both
gauges spun around 360 degrees! I knew if the speedometer did that, I would
surely break the time/space barrier. From the looks of it, it's a loose
sensor somewhere. Anyone have an idea?