Gauges not working Sport Cluster

[silverfox]

I just purchased a 1986 Cutlass Salon and only the Tach and the speedo are workign. The Volt, Fuel, Temp and Oil Pressure are not working.

Anyone have any ideas as to what could be causing this and how to fix?

thank you all in advance for any help you can give me

 

[Finn80CalaisSBC]

You better check the printed circuit on the back of the cluster. If all the gauges are down, it could be burnt or broken. This came out of my Cutlass a couple of years ago. It had gotten so hot that some of the plastic had melted.

 

[88hurstolds]

The nuts on the printed circuit board are loose, try tightening them up.

 

[redster]

What if they work, but not properly? When i took the cluster out 2 months ago to solder a jumper on the tach, i tightened up all the speed nuts. They're all a bit wonky.