Oh this new $20 tachometer is awesome!
Fired up the truck for the first time after installing this thing and the needle immediately jumped to 5400 rpm.
Stayed that way for about a half an hour while I drove to town and then the second time I started the truck the needle didn't move at all.
I couldn't care less, it's pretty blue and now that I fixed the striped out printed circuit ground screw and added blue LED bulbs I can read the oil pressure gauge at night.
Hey at least it's still accurate with the engine off right?
