Originally Posted by Eco Taxi
Let me know what you find out - I've been looking at these gauges for my truck - in the other 7.3 interior forum for say 95-98 or whatever years - there's a glow shift thread with a few owners - ask them -
My guess is bad ground but don't know how that'd happen over the weekend - moisture?
Had two sets , on to bigger and better things now for a few more extra dollars. Not worth the savings in my opinion.
OP - you can call their tech help and they will guide you through the problem.