Dash stops working when I turn on lights

[ullose272]

Any ideas before is start taking this thing apart? Dash lights don't work and fuel guage goes to empty when I turn on the headlights. The other guages don't work anyway and speedo is mechanical so it obviously works. Turn signals also stop working. This truck my wife and her dad built like 20 years ago, it doesn't get driven much and never at night. Except for a couple days ago lol

[oneshotkyle]

Originally Posted by ullose272

Any ideas before is start taking this thing apart? Dash lights don't work and fuel guage goes to empty when I turn on the headlights. The other guages don't work anyway and speedo is mechanical so it obviously works. Turn signals also stop working. This truck my wife and her dad built like 20 years ago, it doesn't get driven much and never at night. Except for a couple days ago lol

I would look for ground problems.

[rockyrivermark]

Follow these steps.
1. Check all the grounds
2. Check all the grounds again.