hey all im new to this site ive been looking around and it seems like you all know what your talking about. I have a 91 f-150 xlt. About 3 months ago the all the gauges started going in and out (exept the speedo), now they all have quit (exept the speedo), im thinking its a ground issue???? but im not sure where the ground for the instrument panel is??? any hints on a solution? thanks

 

There are two electrical connections on the back of the cluster, one may have come out. They're usually pretty tight, but if someone has been in there and didn't click them all the way in they may have come loose.

 

The gauges have a common power and each has its own ground signal wire.