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Sticky tach. Jumpy tach. Any idea?

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BlueShark

20+ Year Contributor
43
0
Jun 22, 2002
N/A,
My factory tach just started to act all weird 2 days ago.
This is what it does.

When I floor it in gears, it looks like it's sticking to the rpm where it was before flooring and all of sudden jump over 2000rpm. For example, I would be driving on a highway. 3000rpm, constant speed. I floor it but the tach needle goes 3000,3100, 3150, and all of sudden 5500rpm. Sometimes it goes back and forth between 4000 and 5000 rpm. I guess it's kinda hard to describe it.

It's sticky and jumpy.

Anybody else experienced this???
Solution???
 
You ll probably have to pull out teh dash to even figure it out...its probab;y a faulty ground or something with the connection. If its not that, I really dont know?
 
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