1991 Chevy Blazer dashboard lights are burned out. Can't read

If your speedometer lights up but gauges water oil gas don't check your wiring. mine will flicker then not lite up at all it. I replaced fuses was told it was the green motherboard replaced the whole electronic dash twice and it turns out it is a loose wire on the fire wall in the engine compartment

Your dash needs to come out. These bulbs push into a plastic piece that "twists" into the back of the dash board. (About a 1/4 turn) Unless you can get at them from underneath, but I think it's to tight.

I have the same problem and put in 5 new 168 bulbs in my 91 chevy s10 pickup and i put the gauges back and only the furthest right bulb works why dont the other 4 work? the fuse is fine