no electrical power to the dashboard

Hello all the way from Sweden!
I have a chevy van g30 coach -1990 19500km.

I have a huge problem with my dashboard!
I won´t get any power in to my speedo, fuelmeter, chargemeter oilpress., the entire system is down, except the dashlight, aircond. and the fan-system....

Please help me somebody.....!

Johan

If the 1990 model is similar to the 1992 model, there is a fuse for the guages (20 amp). First check that. Next check the common ground terminal (node 150) that connects to pins 5, 10 and 17 of the Panel Cluster connector (black wires). This should connect to the body with a sheet metal screw. Check for a bad connection or wire damage.