INSTRUMENT CLUSTER DOES NOT WORK ALL THE TIME EXCEPT BATTERY GAUGE IT ALL POWERS UP AND THEN GOES DEAD, WIRING?

Sounds like your on the right track with a poor connection somewhere.

Had a guy with a similar problem with cluster and this is what he found.

"the fault was in the wiring loom in the engine bay between the fuse box and the firewall (about 18 in) the hood release cable had been
rubbing and shorted the wires. I moved the cable out of the
way repaired the wires and everything is now happy"

Sometimes it helps to have a wiring diagram to help you trace the wiring or even know what fuse might be involved. We offer free wiring diagrams to those that need it most.

Free Wiring Diagrams

Instrument Cluster
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