When the vette hits a bump all the lights in the dash board will flicker, what do you think? Thanks in advance for help!
I have an 85 if that makes a difference.

Sounds like a loose ground wire. Good place to start.:thumbsup3:

Sounds like a loose ground wire. Good place to start.:thumbsup3:

My RPMS tend to go Dim then Bright, repeat. I've seen many posts on this being a loose ground. But I will ask this, where it that little freaking ground, I want to tackle it! :rofl: I can't stand when it goes dim at night!

I don't know. Guess I would pull the guage cluster cover, then the guage cluster and trace the black wires.:kngt::kngt:

I don't know. Guess I would pull the guage cluster cover, then the guage cluster and trace the black wires.:kngt::kngt:

I was investigating around the area today( center console, Cd player and such) I will go into the dash another day :thumbsup3: