The lights go out

When I turn the lights on , the dash lights go out on my 1988 k1500 silverado


Do you have a dimmer knob for the cluster?

Do they blow the fuse or just not light up? Either way I think you have a switch problem.

no, it does not blow the fuse, I will have to check the switch


What about that dimmer?

On many cars, unless the dimmer is at maximum setting, the cluster illumination will be very dim when turning on the lights