how do I repair dash gauges? on 1990 Buick Riviera

has no gauges,speedo ,etc

3 answers 2 comments
you probably have to replace the cluster
It came on once while I was driving,everything worked normal.Then went off again
Agree with gg, that is tipycle of a failing cluster!
need a new cluster or a repaired one
Check out ebay or google instrument cluster.