Can cause surging and/or flickering
I had this problem and it was a bad alternator.
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
My dash lights went out and the cause was a bad alternator. new alternator fixed the problem
No, its a bad earth somewhere
You may see the headlights and dash lights flicker at an idle. You may hear unusual noises coming from the alternator when the engine is running.
your alternator is going bad
Yes.
There are several signs that an alternator is going bad. A few signs are dim lights, smell, warning lights, and a dead battery.
No. A bad battery is not causing your dash lights to go on and off. A different part is bad. Without equipment I have no idea what it is.
Voltage too high - bad voltage regulator on alternator. I bet your dash lights are very bright also.... Change out that alternator before you start popping other bulbs....
check your wiring for your lights under the dash or a bad ground
Probably the dash fuse is blown, or the dimmer switch for the dash lights is bad!