My wife has an 04 F-150 STX which I upgraded the guages a couple of month back. Over the last week, the guages have become possessed. They intermittently go to zero (all of them), the low fuel indicator lights up, the needles start to vibrate at the zero mark, and then they come back to life. Even when the truck is off, the guages vibrate at zero and you can hear them clicking. Any idea what this could be? Thanks

 

Your battery is probably going bad, test the old battery or just swap in a new one

 

X2 they all vibrate a lil bit when you shut the truck off however