A couple of moths ago my tachometer stopped working. One day it just started jumping sporadically and by the end of the day it had pegged at 8k and never moved again.
I thought The cluster was bad... reflowed solder and even went and got another cluster.

All of the other gauges work it's just the tachometer.... Car runs great no CEL light. Just made a 160 mile round trip without so much as a sputter.